Abstract: To provide a portable wireless device in which the portability is excellent, a decrease in a size or a closed call is enabled, and a bandwidth can be increased with a reduction in an SAR value, There is employed a structure which includes a housing forming an outer packaging of the portable telephone, a circuit board provided in the housing, an antenna element provided close to one of short sides of the circuit board, and a metal plate connected to at least one of long sides of the circuit board and the antenna element side along a side wall of the housing, and in which a side of the metal plate that is not connected to the circuit board is opened.

Abstract: There is adopted an enclosure dipole antenna structure including antenna elements respectively provided in a lower enclosure and an upper enclosure. There is also adopted a structure in which the lower structure and the upper structure are rotatably joined together along two axes of hinges. The enclosures thereby become openable and closable in two directions including a vertical direction and a horizontal direction. There can be implemented high antenna performance without use of an external antenna even regardless of whether the enclosures are opened in the vertical direction or the horizontal direction. A feeding section and a connection section are separated from each other by a distance of 1/20 or more of a wavelength corresponding to an operating frequency. Power can well be fed to the antenna elements.

Abstract: An upper case (1) is connected to a lower case (2) in a hinge portion (3) so as to freely rotate. A plate shaped conductor (4) and a plate shaped conductor (5) are disposed along the surface of the case in the upper case (1). A ground plate (6) is formed in a ground pattern of a circuit board disposed in the lower case (2). The plate shaped conductor (4) and the plate shaped conductor (5) are selected by a high frequency switch (14) and connected to one end of a feeding portion (15). The other end of the feeding portion (15) is connected to the ground plate (6) to form a dipole antenna.

Abstract: When three or more antennas and a plurality of wireless circuits using wireless frequency bands near to each other are installed on a cabinet whose size is limited, degradation of characteristic caused by electromagnetic coupling between antennas is suppressed. When a first antenna 21 and a second antenna 22 are connected to a first wireless circuit 31, a third antenna 23 is connected to a second wireless circuit 32, and an operation frequency band of the second wireless circuit 32 is near in a higher band than an operation frequency band of the first wireless circuit 31, a feeding point 23a of the third antenna is placed at a position nearer to a feeding point 21a of the first antenna than the feeding point 22a of the second antenna.

Abstract: There is provided a portable radio that enables simultaneous input of high frequency signals from a plurality of built-in antennas and performance of optimum receiving operation. A portable radio 1 include a first built-in antenna 10A; a first low noise amplifier 122A that amplifies a signal from the first built-in antenna 10A; a first receiving section 124A that carries out a predetermined receiving operation to a signal from the first low noise amplifier 122A; a second built-in antenna 10B that is lower than the first built-in antenna 10A in terms of a gain; a second low noise amplifier 122B that amplifies a signal from the second built-in antenna 10B; a second receiving section 124B that carries out a predetermined receiving operation to a signal from the second low noise amplifier 122Bo; and a receiving circuit section 123 that carries out a predetermined diversity processing to the signals undergone receiving operation when both of the receiving sections 124 perform receiving operation.

Abstract: There is provided a portable radio that makes it possible to assure high receiving performance by improving deterioration of antenna gain attributable to electromagnetic field coupling between the plurality of antennas. A portable radio has a first antenna 11; a second antenna 13; a first low noise amplifier 12 connected to the first antenna 11; a second low noise amplifier 14 connected to the second antenna 13; and a DTV tuner module 15 that can perform diversity combination and that is connected to the first low noise amplifier 12 and the second low noise amplifier 14, wherein an input impedance of the first low noise amplifier 12 and an input impedance of the second low noise amplifier 14 entirely differ from each other at an operating frequency band of the DTV tuner module 15 capable of performing diversity combination.

Abstract: A collapsable portable wireless unit (100) comprises an upper case (101) and a lower case (102) coupled through a hinge member (103) to open/close freely. A planar conductor (105) is arranged on the upper case (101). First and second power supply sections (111, 112, 103) are arranged on the planar conductor (105) at a specified interval. A harmonic signal distributor (120) is arranged on a circuit board (110) provided in the lower case (102) and distributes a harmonic signal to the first and second power supply sections (111, 112, 103). A phase shifter (121) sets the exciting phase of the harmonic signal in the second power supply sections (112, 103) at a value different from that of the exciting phase of the harmonic signal in the first power supply sections (111, 103).

Abstract: There is provided a mobile telephone assuring a high reception sensitivity over a wide band without deteriorating the design of the mobile telephone. In the mobile telephone, a helical antenna (4) operating as an antenna for television reception is formed by winding a conductive element along the external surface of the case several times at the upper end of the upper case (1). The helical antenna (4) is impedance-matched by a matching circuit (5) in a range of the order from 470 MHz to 700 MHz which is the television broadcast frequency. The matching circuit (5) is connected to a broadcast reception circuit (6). The broadcast reception circuit (6) operates as a reception circuit for receiving the television broadcast wave.

Abstract: There is adopted an enclosure dipole antenna structure including antenna elements respectively provided in a lower enclosure and an upper enclosure. There is also adopted a structure in which the lower structure and the upper structure are rotatably joined together along two axes of hinges. The enclosures thereby become openable and closable in two directions including a vertical direction and a horizontal direction. There can be implemented high antenna performance without use of an external antenna even regardless of whether the enclosures are opened in the vertical direction or the horizontal direction. A feeding section and a connection section are separated from each other by a distance of 1/20 or more of a wavelength corresponding to an operating frequency. Power can well be fed to the antenna elements.

Abstract: To provide a cell phone equipped with a broadcast receiver that delivers a high receiving sensitivity and antenna performance in various usage states. A loop element 12 as an antenna for receiving television broadcast is arranged in a range (c) of an upper end portion of an upper housing 1. An end part of an upper circuit board 6 is matched with a portion shown by (a) so that a conductor other than the antenna element does not exist in the range (c). A monopole element 19 for cell phone communication is arranged at a lower end portion of a lower housing 2.

Abstract: To produce a cell culture membrane having biocompatibility utilizing DNA of natural resources and a cell culture kit, the cell culture membrane having DNA ionically-cross-linked with calcium ions or magnesium ions is provided. To produce a porous material utilizing DNA, a production method for a cell culture membrane and a production method for a porous material, fine pores of 1 nm to 100 ?m in diameter are prepared in the porous material.

Abstract: To provide a cell phone equipped with a broadcast receiver that delivers a high receiving sensitivity and antenna performance in various usage states. A loop element 12 as an antenna for receiving television broadcast is arranged in a range (c) of an upper end portion of an upper housing 1. An end part of an upper circuit board is matched with a portion shown by (a) so that a conductor other than the antenna element does not exist in the range (c). A monopole element 19 for cell phone communication is arranged at a lower end portion of a lower housing 2.

Abstract: It is to provide a mobile telephone device with the broadcasting receiver having high sensitivity over a broad band. A meander element 14 is disposed in parallel to an opening surface 5a of a loop element 5, and the two elements 5 and 14 are connected directly in a feeding point 9 so as to be supplied with power in parallel. Thus, the two elements 5 and 14 operate as antennas taking charge of upper and lower divided bands of a frequency band respectively.

Abstract: A mobile telephone device capable of acquiring a high sensitivity over a wide band without being obstructed by the antenna when in use and while being held by the hand of a user. In this device, a variable tuning circuit (106) and a band switching circuit (107) are connected with a loop element (104) acting as a TV receiving on-board antenna. The variable tuning circuit (106) is controlled with a tuning voltage (110) generated in a TV receiving circuit (109). A channel control unit (111) sets the received channel of the TV receiving circuit (109) and controls the band switching circuit (107) with a band switching signal (112).

Abstract: There is disclosed a mobile telephone device capable of getting a high reception sensitivity whatever the use state is. In this device, a loop element (104) is arranged in the vicinity of a hinge unit (103) of an upper case (101). The loop element (104) is connected via a matching circuit (105) to a broadcast reception circuit (106). The device is configured so that a helical element (111) is selected in an earphone connector (109) when an earphone cable (108) is removed. A reception signal of the antenna selected by the earphone connector (109) is inputted to a broadcast reception circuit (110). Demodulation signal selection circuit (113) operates to select a demodulation signal having a higher signal quality outputted from the broadcast reception circuit (106) or the broadcast reception circuit (110).

Abstract: A collapsable portable wireless unit (100) comprises an upper case (101) and a lower case (102) coupled through a hinge member (103) to open/close freely. A planar conductor (105) is arranged on the upper case (101). First and second power supply sections (111, 112, 103) are arranged on the planar conductor (105) at a specified interval. A harmonic signal distributor (120) is arranged on a circuit board (110) provided in the lower case (102) and distributes a harmonic signal to the first and second power supply sections (111, 112, 103). A phase shifter (121) sets the exciting phase of the harmonic signal in the second power supply sections (112, 103) at a value different from that of the exciting phase of the harmonic signal in the first power supply sections (111, 103).

Abstract: There is provided a mobile telephone assuring a high reception sensitivity over a wide band without deteriorating the design of the mobile telephone. In the mobile telephone, a helical antenna (4) operating as an antenna for television reception is formed by winding a conductive element along the external surface of the case several times at the upper end of the upper case (1). The helical antenna (4) is impedance-matched by a matching circuit (5) in a range of the order from 470 MHz to 700 MHz which is the television broadcast frequency. The matching circuit (5) is connected to a broadcast reception circuit (6). The broadcast reception circuit (6) operates as a reception circuit for receiving the television broadcast wave.

Abstract: A portable telephone with broadcast receiver realizing high sensitivity performance by interlocking with the screen display state both at the time of broadcast receiving and portable telephone communication, thereby attaining suitable antenna polarization characteristics. An antenna element (1) is mounted on a display section case (3) in such a manner that its helical axis direction is aligned with the longitudinal direction of a liquid crystal display section (2). The display section case (3) is connected to an upper case (5) rotatably through a rotary shaft (4). The upper case (5) is coupled to a lower case (7) to be opened/closed freely through a hinge part (6). Main polarization direction of the antenna element (1) is varied depending on the rotational state of the liquid crystal display section (2) where its screen becomes long laterally or longitudinally, thus ensuring antenna polarization characteristics suitable for both at the time of broadcast reception and portable telephone communication.

Abstract: An upper case (1) is connected to a lower case (2) in a hinge portion (3) so as to freely rotate. A plate shaped conductor (4) and a plate shaped conductor (5) are disposed along the surface of the case in the upper case (1). A ground plate (6) is formed in a ground pattern of a circuit board disposed in the lower case (2). The plate shaped conductor (4) and the plate shaped conductor (5) are selected by a high frequency switch (14) and connected to one end of a feeding portion (15). The other end of the feeding portion (15) is connected to the ground plate (6) to form a dipole antenna.