Abstract: In some embodiments, a system includes a first antenna element configured, in response to receiving fifth generation (5G) communication signals carrying encoded data, to generate a first surface electromagnetic wave. The first surface electromagnetic wave is capable of tunneling through a conductive enclosure and includes the encoded data. The system includes a second antenna element, within the conductive enclosure configured, in response to receiving the first surface electromagnetic wave, to generate a second surface electromagnetic wave within the conductive enclosure for distributing the encoded data to an electronic device operating in the conductive enclosure.

Abstract: In some embodiments, a system includes a first antenna element configured, in response to receiving fifth generation (5G) communication signals carrying encoded data, to generate a first surface electromagnetic wave. The first surface electromagnetic wave is capable of tunneling through a conductive enclosure and includes the encoded data. The system includes a second antenna element, within the conductive enclosure configured, in response to receiving the first surface electromagnetic wave, to generate a second surface electromagnetic wave within the conductive enclosure for distributing the encoded data to an electronic device operating in the conductive enclosure.

Abstract: In some embodiments, a system includes a first antenna element configured, in response to receiving fifth generation (5G) communication signals carrying encoded data, to generate a first surface electromagnetic wave. The first surface electromagnetic wave is capable of tunneling through a conductive enclosure and includes the encoded data. The system includes a second antenna element, within the conductive enclosure configured, in response to receiving the first surface electromagnetic wave, to generate a second surface electromagnetic wave within the conductive enclosure for distributing the encoded data to an electronic device operating in the conductive enclosure.

Abstract: A new rapid optical specific absorption rate (SAR) system is disclosed. The rapid optical SAR system has ability to measure and map the power deposited in a flat phantom or other phantom filled with a transparent simulant fluid. Absolute rates of temperature increase in the phantom by photo thermal techniques are measured. For example, the temperature increase and gradients in the phantom bend the path of a laser beam, which may be aimed at a position sensitive detector. The spatial SAR may be mapped and SAR differences between different telephones and telephone orientations, for example, can be distinguished. The system is non-invasive and non-perturbing of the SAR distribution in the phantom, can measure at locations up to the interior surface of the phantom, and provides thermally-based SAR measurements that do not necessarily require constant calibration.

Abstract: An F-inverted compact antenna for ultra-low volume Wireless Sensor Networks is developed with a volume of 0.024?×0.06?×0.076?, ground plane included, where ? is a resonating frequency of the antenna. The radiation efficiency attained is 48.53% and the peak gain is ?1.38 dB. The antenna is easily scaled to higher operating frequencies up to 2500 MHz bands with comparable performance. The antenna successfully transmits and receives signals with tolerable errors. It includes a standard PCB board with dielectric block thereon and helically contoured antenna wound from a copper wire attached to the dielectric block and oriented with the helix axis parallel to the PCB. The antenna demonstrates omnidirectional radiation patterns and is highly integratable with WSN, specifically in Smart Dust sensors. The antenna balances the trade offs between performance and overall size and may be manufactured with the use of milling technique and laser cutters.

Abstract: A new rapid optical specific absorption rate (SAR) system is disclosed. The rapid optical SAR system has ability to measure and map the power deposited in a flat phantom or other phantom filled with a transparent simulant fluid. Absolute rates of temperature increase in the phantom by photo thermal techniques are measured. For example, the temperature increase and gradients in the phantom bend the path of a laser beam, which may be aimed at a position sensitive detector. The spatial SAR may be mapped and SAR differences between different telephones and telephone orientations, for example, can be distinguished. The system is non-invasive and non-perturbing of the SAR distribution in the phantom, can measure at locations up to the interior surface of the phantom, and provides thermally-based SAR measurements that do not necessarily require constant calibration.

Abstract: An F-inverted compact antenna for ultra-low volume Wireless Sensor Networks is developed with a volume of 0.024?×0.06?×0.076?, ground plane included, where ? is a resonating frequency of the antenna. The radiation efficiency attained is 48.53% and the peak gain is ?1.38 dB. The antenna is easily scaled to higher operating frequencies up to 2500 MHz bands with comparable performance. The antenna successfully transmits and receives signals with tolerable errors. It includes a standard PCB board with dielectric block thereon and helically contoured antenna wound from a copper wire attached to the dielectric block and oriented with the helix axis parallel to the PCB. The antenna demonstrates omnidirectional radiation patterns and is highly integratable with WSN, specifically in Smart Dust sensors. The antenna balances the trade offs between performance and overall size and may be manufactured with the use of milling technique and laser cutters.

Abstract: Antenna systems (200, 1300, 1500, 1900, 2000, 2400) comprise a dielectric resonator antenna (210) in the shape of a parallelepiped with right angle corners. The thickness (T) of the dielectric resonator antenna (210) is chosen to be less than the length and height. The antenna systems (200, 1300, 1500, 1900, 2000, 2400) provide have broad band response that is attributed to two or more resonant modes that have center frequencies that are closely spaced in frequency relative to their bandwidths. Additional pass bands can be obtained by placing a conductive strip (1302) along an edge of the dielectric resonator 210. The passband associated with the conductive strip (1302) can be lowered in frequency by capacitively loading the conductive strip (1302). An additional passband can also be obtained by coupling a metal ribbon (2012) to a feed in microstrip (206, 2002) and to the dielectric resonator antenna (210).

Abstract: Antenna systems (200, 1300, 1500, 1900, 2000, 2400) comprise a dielectric resonator antenna (210) in the shape of a parallelepiped with right angle corners. The thickness (T) of the dielectric resonator antenna (210) is chosen to be less than the length and height. The antenna systems (200, 1300, 1500, 1900, 2000, 2400) provide have broad band response that is attributed to two or more resonant modes that have center frequencies that are closely spaced in frequency relative to their bandwidths. Additional pass bands can be obtained by placing a conductive strip (1302) along an edge of the dielectric resonator 210. The passband associated with the conductive strip (1302) can be lowered in frequency by capacitively loading the conductive strip (1302). An additional passband can also be obtained by coupling a metal ribbon (2012) to a feed in microstrip (206, 2002) and to the dielectric resonator antenna (210).

Abstract: An antenna system includes a main antenna (16) and a parasitic element (18). The parasitic element (18) is rotatably coupled (24) to the main antenna (16), the antenna system being movable from a closed position to an open position, in which the main antenna (16) is coupled to the parasitic element (18) to cause the parasitic element (18) to operate as a passive radiator element and to radiate (32) along with the main antenna (34) to enhance the gain of the antenna system.

Abstract: A double resonant wideband patch antenna (100) includes a planar resonator (101) forms a substantially trapezoidal shape having a non-parallel edge (103) for providing a substantially wide bandwidth. A feed line (107) extends parallel to the non-parallel edge (103) for coupling while a ground plane (111) extends beneath the planar resonator for increasing radiation efficiency.

Abstract: An antenna (100) has a multi-mode resonating structure (110) that includes three electromagnetically coupled resonators (112, 114, 116) carried by a dielectric substrate (120). A feed system (130, 135), electromagnetically coupled to the multi-mode resonating structure (110), excites three resonating modes that operate together to produce a pass-band. Preferably, the multi-mode resonating structure (110) is formed from a wide patch radiator (112) planarly disposed between two narrow patch radiators (114, 116). The patch radiators (112, 114, 116) are simultaneously fed.

Abstract: An antenna (100) has a low reluctance material (140) positioned to influence radiation pattern. The antenna (100) includes a radiator (110), and the low magnetic reluctance material (140) is positioned in close proximity to a particular side of the radiator (110). The low reluctance material (140) has a primary function of providing a preferred path for the magnetic field generated by the radiator (110), thus confining the magnetic energy and reducing radiation along at least one side of the antenna (100).

Abstract: A microstrip antenna (100) achieves wider bandwidth by using an asymmetric radiating structure (110). The radiating structure (110) supports at least two resonating modes, which are preferably a differential and a common resonating mode. A feed system (130, 135) is coupled to the radiating structure (110) to excite the respective resonating modes at different frequencies to provide a radiating band for communication signals. Preferably, the antenna (100) includes patch radiators (112, 114) of substantially different widths, and a buried microstrip line (130) that simultaneously feeds the patch radiators (112, 114).

Abstract: A directional center-fed half wave dipole antenna is constructed from a multilayer substrate (100) having dipole antenna elements (112, 142) disposed on opposite surfaces (113, 141) of the multilayer substrate (100). An energy reflector (160) is disposed on at least one side of the substrate (100) and positioned adjacent to the dipole antenna elements (112, 142). The dipole antenna elements (112, 142) are fed by a center feed member (122). Center feed member (122) has a tapered width so as to provide the necessary impedance matching. A ground plane is disposed within the multilayer substrate, the elements of which (114, 134) are positioned on both sides of the center feed element (122).

Abstract: A wide beamwidth antenna system (100) having a number of monopole antenna elements (102-108) disposed on at least one surface (111,113) of a single, flexible dielectric substrate (101), a number of antenna feed members (110-116), disposed on the first surface (111) of the dielectric substrate (101), each antenna feed member (110-116) being respectively coupled to one of the monopole antenna elements (102-108), a system feed member (118), disposed on the first surface (111) of the dielectric substrate (101), a first power splitter (120), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the system feed member (118) and the first one of the monopole antennae (102) and a first phase shifter (130), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the first (102) and the second (104) monopole antennae. A ground plane (140) is disposed on a portion of the second surface (113) of the dielectric substrate (101).

Abstract: An efficient electrically small loop antenna includes a radiation device, an impedance matching network, and a connector that interfaces to associated electronic circuitry. The radiation device includes a conductive planar base element extending in a base plane and a conductive loop connected to the planar base element. The loop connects to the base element so that the electrical current for the antenna flows through both the conductive loop and the planar base element. The impedance matching network matches the radiation device to the associated electronic circuitry. The matching network is integrated into the planar base and is connected to both the conductive loop and the base element so that the electric current supplied to the antenna is conducted through both the base element and the conductive loop.

Abstract: An energy diversity antenna (100) includes a first antenna (103) and second antenna (113) positioned on a substrate (101). The first antenna is preferably a loop used for receiving radio frequency signals with H-field energy while the second antenna is preferably a monopole used for receiving radio frequency signals with E-field energy. The energy diversity antenna (100) is applicable for use in portable communications devices capable of diversity reception. It is particularly useful in geographic locations where reflections and multipath interference is a problem.

Abstract: An antenna comprises a feed port, a 1/2 wavelength radiator (20), and a double resonant transformer (10). The feed, port, having a signal feed portion (34) and a ground portion (44), is at a low impedance while the 1/2 wavelength radiator (20) has opposed high impedance ends (21 and 22). For transforming low impedance to high impedance, at two resonant frequencies, the double resonant transformer is coupled between the feed port and the 1/2 wavelength radiator.

Abstract: A radio communication device (100) includes an offset antenna (104) and a housing (101). The offset antenna (104) includes an offset portion (108) and radiating portion (116). The antenna (104) is coupled to the radio housing (101) through a pivot mechanism (106) so that the antenna could rotate from a stowed position (114) to a deployed position (112). In the deploy position (112), the antenna is away from the user, a distance equal to the sum of the width (110) and the offset portion (108). This separation of the antenna from the body provides for significant improvement in the antenna performance.