Abstract: An electronic device is provided. The electronic device includes a housing including a side member, a support member, a display, an antenna module including one or more patch antennas, a printed circuit board (PCB), a wireless communication circuit disposed on the PCB, a first conductive member, a first connector, a second connector, and a protrusion extending from the first end of the first conductive member toward an interior of the housing, and electrically connected to the first conductive member. The antenna module is disposed at locations corresponding to a first opening defined by the first conductive member, the support member, the first connector, and the second connector, and a second opening defined by the first conductive member, the support member, the first connector, and the protrusion, and the wireless communication circuit is electrically connected to the protrusion and the antenna module.

Abstract: A network node is configured to receive and/or estimate respective precoder information for a plurality of wireless devices. A respective orthogonal projection matrix is determined for each of the plurality of WDs based at least in part on the precoder information of all other WDs of the plurality of WDs. A respective modified precoder matrix is determined for each of the plurality of WDs based at least in part on the respective orthogonal matrix and precoder information for each WD of the plurality of WDs. A composite precoder matrix is determined based at least in part on the modified precoder matrices for each of the plurality of WDs. A transmission beam shape is then determined for use in transmission to at least one of the plurality of WDs based on the composite precoder matrix.

Abstract: An electronic device is provided that includes a display disposed to face a first direction, a back plate disposed to face a second direction opposite to the first direction, a support member disposed below the display and configured to be coupled with the display, a printed circuit board disposed between the support member and the back plate, and a first antenna and a second antenna disposed between the printed circuit board and the back plate and configured to emit signals in a radio frequency band, and the first antenna is electrically connected to a first ground region included in the printed circuit board, and the second antenna may be electrically connected to a second ground region included in the support member.

Abstract: An apparatus including a housing; sensors configured to sense one or more locations upon which a user is gripping the housing; sensors including antenna modules configured to transmit a signal based on the one or more locations upon which the user is gripping the housing. Another aspect relates to an apparatus including a housing; a set of antenna modules situated proximate at different surface locations along the housing; and a controller configured to operate the set of antenna modules to determine at least one or more electromagnetic leakage coupling between at least one pair of antenna modules of the set. In this aspect, the controller may be configured to select one or more of the set of antenna modules for transmitting a signal based on the one or more electromagnetic leakage coupling associated with one or more of the different locations where a user grips the housing, respectively.

Abstract: An antenna of a terminal device, the antenna includes a metal frame, a side of the metal frame is provided with at least two slots, and the slots are ring-shaped slots. Portions of the metal frame at two sides of each slot of the at least two slots are provided with two groups of feed points, and each group of feed points includes an antenna feed point located on a portion of the metal frame at the inner side of the slot, and a ground feed point located on another portion of the metal frame at the outer side of the slot. The metal frame is electrically connected to a floor in the terminal device.

Abstract: An electronic controller includes a housing. The housing has an opening configured such that a radio module is removably insertable into the housing, and a cover and plug are also insertable into the housing.

Abstract: A wireless-access point includes a first radio to transmit RF signals in a first channel; a second radio to transmit, simultaneously to transmissions of the RF signals by the first radio, RF signals in a second, non-overlapping channel; and a plurality of planar antennas coupled with corresponding first and second radios to receive the RF signals. First and second planar antennas are coupled with the first radio to receive therefrom, in the first channel, a first RF signal and a second RF signal, respectively. The first planar antenna is arranged with its normal along a first direction. The second planar antenna is arranged with its normal along a second, different direction. A third planar antenna is coupled with the second radio to receive therefrom a third RF signal in the second channel, the third planar antenna being arranged with its normal along a third direction.

Abstract: An antenna system (150) comprises a Centralized Processing Unit (160); at least two antenna units (200) connected to the CPU (160) by cables. Each antenna unit (200) comprises at least one connector; one or more antenna elements (220) and one or more 5 Antenna Processing Units (230) connected to the one or more antenna elements (200). The one or more antenna processing units (230) are connected to a data bus connected to the at least one connector.

Abstract: This disclosure relates to performing receive beam tracking using motion sensing information in a cellular communication system. A wireless device and a cellular base station may establish a cellular link. A receive beam configuration may be selected for the cellular link. A downlink data beam may be received using the selected receive beam configuration. A possible modification to the receive beam configuration may be selected based at least in part on motion sensing information for the wireless device. It may be determined whether the possible modification to the receive beam configuration improves downlink data beam reception. It may be determined whether to modify the receive beam configuration for the cellular link in accordance with the possible modification to the receive beam configuration, for example based on whether the possible modification to the receive beam configuration improves downlink data beam reception.

Abstract: A method of configuring an antenna that includes a plurality of RET units that are associated with respective ones of a plurality of arrays of radiating elements is provided in which, for each array in a subset that includes at least one of the arrays, setting an output of the RET unit associated with the array to a position that corresponds to a pre-selected electronic downtilt for the array. A first RET unit configuration file is loaded into a memory of the antenna, where the first RET unit configuration file does not include configuration data for the RET units associated with the arrays that are included in the subset. A second RET unit configuration file is provided that includes configuration data for all of the RET units.

Abstract: The present invention relates to a mobile terminal comprising: a terminal body; a ground provided in the interior of the terminal body; a first conductive member distanced from the ground, electrically supplied from a first supply unit, and surrounding one side of the ground; a second conductive member disposed on one side of the first conductive member, electrically supplied from a second supply unit, and surrounding the other side of the ground; and a junction portion, disposed at one point on the first conductive member, for grounding same to the ground, wherein one end of the first conductive member is distanced from the ground to form a first open slot, one end of the second conductive member is distanced from one end of the first conductive member to form a second open slot, the other ends are connected to the ground, and the first and second conductive members are oriented so as to cross each other.

Abstract: Methods, systems, and devices for wireless communications are described. Beam pair link (BPLs) may be associated with a state of a wireless device. For example, a first wireless device may communicate with a second wireless device using a set of BPLs, and the second wireless device may operate using a predetermined movement sequence, where different movements may correspond to the second wireless device using respective states. In some examples, a BPL may be selected for each state of the second wireless device and used to communicate with the first wireless device, where the BPL that corresponds to a particular state may be determined through beam training procedures. In some cases, BPLs associated with respective states may experience decreased link quality and the first wireless device may transmit a configuration that modifies the communications between the first and second wireless devices based on the affected BPLs.

Abstract: An electronic device comprises a plurality of antennas, wherein each of the plurality of antennas are spaced apart from each other, a first communication circuit electrically connected with the plurality of antennas, a plurality of array antennas comprising a first array antenna disposed adjacent to at least one of the plurality of antennas, and a second array antenna disposed adjacent to another antenna different from the at least one antenna of the plurality of antennas, a second communication circuit electrically connected with the first array antenna and the second array antenna, and at least one control circuit electrically connected with the first communication circuit and the second communication circuit, wherein the at least one control circuit is configured to obtain receive sensitivities of the plurality of antennas through the first communication circuit; activate at least one array antenna of the first array antenna and the second array antenna through the second communication circuit based at lea

Abstract: A mobile information handling system may include, in an embodiment, a wireless network interface; a wireless performance modulator to adjust the performance of the wireless network interface; and a sensor to receive input descriptive of the environment of the mobile information handling system and provide the input to the wireless performance modulator to adjust the performance of the wireless network interface based on information associated with the sensed environment received by the sensor wherein the sensor is a movement sensor to detect the movement of the mobile information handling system so as to determine, with the wireless performance modulator, whether to initiate a roaming process to search for a wireless network to communicatively couple the mobile handling system upon detection of movement above a threshold level.

Abstract: A communication technique and a system thereof for are provided fusing a 5G communication system to support higher data rates, which is subsequent to the 4G system, with IoT technology. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safe-related services, etc.) based on 5G communication technology and IoT-related technology. A method of operating a base station in a wireless communication system includes transmitting channel feedback configuration information to a terminal; receiving channel feedback information from the terminal; and performing transmission/reception of data, based on the channel feedback information. The channel feedback information may include information indicating a state of an antenna panel of the terminal.

Abstract: A wearable device and method for operating the same are provided. The wearable device includes an antenna element, a first matching circuit, a second matching circuit, and a switch element. The first matching circuit has a first impedance value. The second matching circuit has a second impedance value different from the first impedance value. The switch element is configured to determine whether the antenna element is electrically connected with the first matching circuit or the second matching circuit.

Abstract: Facilitating generic feedback to enable reciprocity and over the air calibration for advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise selecting information to include in a channel state information feedback report based on a feedback instance. The operations can also comprise generating the channel state information feedback report as a function of channel statistics of channels. Further, the operations can comprise transmitting the channel state information feedback report to a network device of a communications network.

Abstract: Disclosed herein is a wearable device having a horizontally polarized antenna and a vertically polarized antenna to gain the benefit of both types of polarization resulting in optimal signal transmission to and reception by a user's smartphone or mobile device. The wearable device includes a printed circuit board on a first plane along which plane the signal from the horizontally polarized signal will propagate. The printed circuit board includes a conductive ground plane and a trace antenna conductively coupled on one end of the trace to the conductive ground plane between which the horizontally polarized field is generated when the trace antenna is excited. A vertical field enhancer, parallel to the first plane and a distance from the trace antenna, is coupled to the ground plane, such that when the trace antenna is excited, a vertically polarized field is generated between the trace antenna and the vertical field enhancer.

Abstract: In an aspect, a user equipment (UE) determines a mutual coupling signal associated with a transmit antenna and a receive antenna, determines a mutual coupling difference between the mutual coupling signal and a reference signal, determines a beat signal difference between a current beat signal and a previous beat signal, and determines an amount of micro-motion that is present within a near field. The UE determines whether human tissue is present within the near field based on the mutual coupling difference and the amount of micro-motion. Based on determining that the human tissue is present within the near field, the UE determines an amount of radio frequency exposure associated with the human tissue. Based on determining that the amount of radio frequency exposure exceeds a maximum permissible exposure, the UE reduces the amount of radio frequency exposure associated with the human tissue.

Abstract: Methods, devices and systems are provided for performing a random access (RA) procedure. A wireless transmit/receive unit (WTRU) may be configured to receive RA resource sets, where each of the RA resource sets is associated with a node-B directional beam, select an RA resource set from among the RA resource sets, and initiate an RA procedure based on the selected RA resource set. The RA procedure may include selecting multiple preambles which include a preamble for each resource of a plurality of resources corresponding to the selected RA resource set. The WTRU may be configured to sequentially transmit the selected multiple preambles in sequential RA transmissions, and may be configured to receive, from a node-B, in response to the RA transmissions, at least one RA response (RAR), where each of the received at least one RAR corresponds to one of the transmitted multiple preambles.

Abstract: An active antenna for UHF/VHF signal receiving is described, the active antenna being capable of configuration in one of a plurality of possible modes. The active antenna includes an antenna element configured for multiple resonances in the UHF/VHF bands, and capable of generating multiple radiation modes as well as active impedance matching using a microprocessor and multi-port switch having variable or multiple selectable modes. The active antenna may include a second antenna element arranged in a right-angle orientation with respect to the first antenna element. The first antenna element, second antenna element, or a combination may be selected for receiving signals in at a desired frequency. A three-dimensional antenna assembly is also described. Each of the examples illustrate an active beam steering antenna capable of UHF/VHF signal receiving.

Abstract: An electronic device according to various embodiments of the present invention may comprise a housing; an inner plate which is built into the housing, at least a portion of which is made of a synthetic resin material, and which comprises a first surface, a second surface facing the opposite direction to the first surface, a first through-hole formed in a cone-shaped cross-section the diameter of which gradually decreases the closer to the second surface from the first surface, and a second through-hole formed in a cone-shaped cross-section, which is disposed adjacent to the first through-hole and the diameter of which gradually decreases the closer to the first surface from the second surface; a first conductive line which is formed on the first surface and is formed to overlap with the first through-hole at least partially when viewed from the first surface, a second conductive line which is formed on the second surface and is formed to overlap with the second through-hole at least partially when viewed from

Abstract: In order to maintain conformance with exposure limits, in band measurements may be performed. A method, a computer-readable medium, and an apparatus may be provided for wireless communication at a user equipment. The apparatus receives an indication of a cell specific resource, e.g., a cell specific resource available for MPE measurement. The apparatus then performs a measurement based on the cell specific resource and determines whether to adjust a transmission characteristic of the user equipment based on whether the measurement meets a threshold. In another aspect a base station apparatus may configure a cell specific resource in which a user equipment may perform an MPE measurement and control use of the cell specific resource for the MPE measurement.

Abstract: To suppress continuation of deterioration of communication quality due to beam failure, also in the case of using beam forming in both transmission and reception, a user terminal according to one aspect of the present invention is characterized by having a control section that controls a transmission beam, and a transmission section that transmits a signal using the transmission beam, where when the control section updates the transmission beam, the transmission section transmits information about transmission beam update, using an updated transmission beam.

Abstract: Apparatuses, methods, and systems for surveying a site are disclosed. One method includes transmitting, by a ground unit, wireless signals while a directionally adjustable beam-forming antenna of the ground unit changes a beam direction of the transmission of the wireless signals to N beam directions, wherein the directionally adjustable beam-forming antenna includes a known motion, receiving and measuring, by an elevated unit, a magnitude and phase of the wireless signals transmitted by the ground unit through the N beam directions, determining N complex receive power representations wherein each complex receive power representation includes the measured magnitude and phase of the received wireless signals corresponding with each of the N beam directions, and determining a receive power summation comprising performing a complex summation of the N complex receive power representations.

Abstract: A chip antenna includes a first ceramic substrate, a second ceramic substrate disposed to oppose the first ceramic substrate, a first patch, disposed on the first ceramic substrate, configured to operate as a feed patch, a second patch, disposed on the second ceramic substrate, configured to operate as a radiation patch, an insertion member disposed between the first ceramic substrate and the second ceramic substrate, and a shielding layer disposed on a side surface of the insertion member.

Abstract: An electronic device comprises a first case, a resin plate, and a display. The first case has a first surface and a second surface. The resin plate is located inside the first case. The display is located on a side facing the first surface of the first case.

Abstract: Provided is an antenna module in which magnetic sheets are disposed on one surface and the other surface of an antenna sheet having a plurality of radiation patterns formed thereon, and an overlapping area between the magnetic sheets is formed to maximize antenna performance for electronic payment, short-range communication, and wireless charging. The provided antenna module comprises: the antenna sheet having radiation patterns formed thereon; a first magnetic sheet disposed on one side of the antenna sheet; and a second magnetic sheet disposed on the other side of the antenna sheet, wherein the first magnetic sheet and the second magnetic sheet form an overlapping area.

Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a hinge device rotatably coupling a main body chassis and a display chassis; and an antenna device for transmitting and receiving a radio wave. The hinge device includes a metal hinge shaft, a metal bearing part, a metal chassis mount member, and a hinge chassis that is made of a radio wave transmissive material. The antenna device includes a holder component housed in the hinge chassis, an antenna element supported by the holder component and a ground element supported by the holder component and electrically connected to the bearing part.

Abstract: Determination of characteristics of a communication environment may be beneficial in many communication systems. For example, certain wireless communication systems, such as fifth generation (5G) communication systems, may benefit from appropriate mobility measurements. A method can include performing, at a user equipment, beam-specific measurements of a plurality of beams of at least one cell. The method can also include calculating a cell quality based on the beam-specific measurements.

Abstract: An electronic device is provided. The electronic device includes a frame, a sliding seat, and a receiver accommodated in the sliding seat. The frame includes a pair of side walls oppositely disposed and a top wall. The top wall defines an accommodating groove. The accommodating groove extends through the pair of side walls. The sliding seat is slidably disposed in the accommodating groove of the frame. The sliding seat defines a first receiving hole, and the receiver is sealed and covers the first receiving hole of the sliding seat, whereby a sound signal of the receiver is transmitted to outside through the first receiving hole when the sliding seat extends from the accommodating groove. In addition, a terminal device and a method for controlling an electronic device are provided.

Abstract: An antenna structure includes a housing, a first feed source, and a second feed source. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to one of a second radiating portion or a third radiating portion of the housing. The other one of the second radiating portion or the third radiating portion is electrically coupled to the first radiating portion.

Abstract: An ultrasonic endoscope includes an ultrasonic vibrator unit provided at a distal end part, the ultrasonic vibrator unit being composed of at least an ultrasonic vibrator array and a first thermally conductive member, the ultrasonic vibrator array having the plurality of ultrasonic vibrators that are arranged in a cylindrical form, the first thermally conductive member being disposed thermally in contact with the ultrasonic vibrator array; a plurality of cables that are electrically connected to the ultrasonic vibrator array; and an electrically conductive structural body that is disposed to extend from a distal end side toward a proximal end side of the ultrasonic endoscope. The ultrasonic vibrator unit and the electrically conductive structural body are connected to each other via an electrically insulating second thermally conductive member.

Abstract: A tunable antenna system is provided for a wearable personal computing device, such as a smartwatch. The tunable antenna system includes at least two antennas configured for respective sets of frequency ranges. One or more radiating elements of the antennas are formed from portions of a metal bezel of the wearable personal computing device. For at least one of the antennas, an aperture tuner and an impedance tuner positioned within the metal bezel are provided, e.g., to tune between various communication bands. Non-conductive slits may be positioned within the metal bezel to provide isolation between the antennas. A ground plane of the antenna system may be formed by a metallic component of the wearable personal computing device. The antenna system can be insulated from a wearer's skin by a non-metallic back cover and optionally a glass back plate arranged to contact the wearer's skin or clothing during use.

Abstract: An antenna structure includes a housing, a first feed source, and a second feed source. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to one of a second radiating portion or a third radiating portion of the housing. The other one of the second radiating portion or the third radiating portion is electrically coupled to the first radiating portion.

Abstract: The disclosed technology includes an antenna system having a radio and an antenna disposed proximate a first end of a separate and distinct mast. The mast can include a data transmission cable that can be in electrical communication with the radio and antenna. A microcontroller can be disposed proximate a second end of the mast, and the microcontroller can be in electrical communication with the data transmission cable and can be configured to control operation of the radio.

Abstract: An antenna structure includes a housing, a first feed source, a second feed source, a third feed source, and a radiating body. The first feed source is electrically coupled to a first radiating portion of the housing and adapted to provide an electric current to the first radiating portion. The second feed source is electrically coupled to the second radiating portion and adapted to provide an electric current to the second radiating portion. The radiating body is mounted within the housing and electrically coupled to the third feed source. The third feed source provides an electric current to the radiating body.

Abstract: An electronic device and method of processing a payment at the electronic device are provided. The electronic device includes a security memory configured to store payment information of a near field communication (NFC) method, payment information of a magnetic security transmit (MST) method, and fingerprint information, and a processor configured to control a multiple payment operation of the NFC method and the MST method when fingerprint information obtained through fingerprint detection is valid. The processor is further configured to control a signal processing information according to the NFC method operation and a signal processing information according to the MST method operation to be outputted as one screen interface.

Abstract: An electronic device according to various embodiments of the present disclosure can comprise: a housing including a first plate, a second plate oriented in the direction opposite to that of the first plate, and a side member surrounding the space between the first plate and the second plate; a plurality of insulating layers interposed between the first plate and the second plate; a printed circuit board in parallel to the second plate; an array of first conductive plates mounted on one layer of the printed circuit board; a second conductive plate mounted on one layer of the printed circuit board so as not to overlap the array when viewing from the top of the second plate; a wireless communication circuit electrically connected to the array and set to provide wireless communication at a frequency of 20-100 GHz; and a grip sensing circuit electrically connected to the second conductive plate. Other various embodiments can be possible.

Abstract: Provided are a back cover for a portable terminal and a back cover-integrated antenna module including the same. A back cover for a portable terminal according to an embodiment of the present invention is disposed on the back surface of a portable terminal body, and includes a pattern portion, which is formed to pass through the back cover formed of a metal material at a region corresponding to at least one antenna and configured to reduce generation of an eddy current.

Abstract: A communication device, method and computer program product enable improved communication performance by switching or tuning antennas based on detecting touches on edge display(s) of the communication device that has at least one antenna positioned along edges of a housing assembly. A controller monitors edge display(s) of the communication device to determine portions of the edge display(s) that are touched and associates the at least one antenna that is proximate to the portions of the edge display(s) that are touched The controller configures a radio frequency front end of the communication device to switch or tune the at least one antenna in order to provide at least one of: mitigating detrimental effects to antenna performance by the at least one antenna or remaining within regulatory limits for RF transmission exposure.

Abstract: A communication device, method and computer program product enable multiple independent communication connections via multiple antennas supported by a configurable housing assembly having first and second housing portions connected for movement between open and closed positions. In response to housing assembly being in an open position, a radio frequency (RF) front end of the communication device is configured to independently communicate in at least a low band via first and second antennas supported by a first housing portion and second and fourth antennas supported by a second housing portion. In response to the housing assembly being in the closed position that brings the first and second antennas into proximity and the third and fourth antennas into proximity, the RF front end is configured to communicate via a first antenna array of the first and the second antennas and via a second antenna array of the third and the fourth antennas.

Abstract: An ultrasonic endoscope includes a plurality of ultrasonic vibrators; a distal end part that houses the plurality of ultrasonic vibrators; an electrically conductive endoscopic structure housed in or connected to the distal end part; a thermally conductive member connected to the plurality of ultrasonic vibrators; and an electrically insulating thermally conductive member connected to the endoscopic structure. The thermally conductive member and the electrically insulating thermally conductive member are connected to each other. Thus, the ultrasonic endoscope that has a heat release structure which transmits the heat generated from the ultrasonic vibrators to the electrically conductive endoscopic structure housed in the distal end part and which can efficiently release the heat therefrom while electric safety is secured; and that can prevent a burn of an alimentary canal by suppressing a temperature rise of surfaces of the ultrasonic vibrators is provided.

Abstract: Systems, methods, and non-transitory computer-readable storage media for determining when to wirelessly communicatively couple together a pair of untethered wireless audio output devices and for determining when to erase a connection history stored on one or both of the wireless audio output devices.

Abstract: The present disclosure provides an antenna system, including: a metal housing including a radiation frame and a grounded back shell; a circuit board located in the metal housing and including a radio frequency feeding source and a tunable capacitor; and an antenna unit connected to the radio frequency feeding source and configured to be coupled to the radiation frame. A fracture is formed between each of two ends of the radiation frame and the grounded back shell. The tunable capacitor is connected to the radiation frame so as to change an electrical length of the antenna system by switching to different capacitances. Compared with the related art, the antenna system provided by present disclosure, by providing the tunable capacitor as a tuner of the antenna system, not only can achieve that the radiation frequency of the antenna system covers 790-960 MHz and 1710-2690 MHz, but also has good radiation performance.

Abstract: An antenna structure includes a first radiation element, a second radiation element, and a third radiation element. The first radiation element has a feeding point. The third radiation element is coupled through the second radiation element to the first radiation element. The third radiation element has a first opening and a second opening which are separate from each other. The antenna structure covers a first frequency band, a second frequency band, and a third frequency band.

Abstract: Adaptive multiplexing and transmit/receive diversity. A wireless device may include multiple antennas. A first set of antennas may be used for communication. One or more trigger conditions may be determined, and additional antennas may be activated for measurement. Based on the measurement(s), a second set of antennas may be selected and used for communication.

Abstract: An earbud system is described. The earbud system may include a primary earbud having a primary antenna. The earbud system may further include a secondary earbud having a secondary antenna. The primary antenna may have a higher effective radiation area than the secondary antenna. The secondary antenna may have a higher gain than the primary antenna.

Abstract: A millimeter-scale Bluetooth low energy wireless transmitter is presented with a dual purpose loop antenna. The oscillator employs a high quality factor resonator formed by a printed 3.5×3.5 mm2 inductive loop antenna (simulated Q˜110) and an on-chip digitally-switched capacitor array (simulated Q˜283). The oscillator replaces the traditional voltage controlled oscillator plus power amplifier, achieving lower power consumption while maintaining phase noise of ?118.5 dBc/Hz at 1 MHz offset that results in low FSK modulation error (2.1%) and low frequency drift during BLE packet transmission.

Abstract: A communication apparatus is provided. A retaining wall structure electrically connected with a ground plane is disposed between a main circuit board and an antenna. A retaining wall part of the retaining wall structure has a thickness. A distance between the retaining wall part and the main circuit board is a first distance, and a distance between the retaining wall part and the antenna and is a second distance. A distance between the retaining wall and a shielding metal plate is a third distance. The projection of the antenna projected toward the retaining wall in the orthogonal projection direction falls on the retaining wall part.