Abstract: The present invention performs characteristic tests on a communication device with a compact and simple configuration. A testing device 1 that performs characteristic tests in a near field on a communication antenna 250 of a communication device 240 includes a tray body 220 that supports the communication device in a test space S as an anechoic chamber, and a coupler support frame 520 that supports coupler antennas transmitting and receiving radio waves to/from the communication antenna 250. The coupler support frame can form inner-periphery coupler antenna arrays 300A and 300B each including a plurality of coupler antennas 300 arranged at least in a row along a curve extending along an inner peripheral surface composed of side surface S1 and S2, an upper surface S3, and a lower surface S4, and a rear coupler antenna array 300C including a plurality of coupler antennas 300 arranged at least in a row in an upper-lower direction along a curve extending along a rear surface S5.

Abstract: An object of the present invention is to suppress occurrence of disturbance in pass amplitude characteristics within a band and disturbance in return loss characteristics in the band due to total reflection, improve cutoff performance, and acquire a favorable gain. An antenna device 1 includes a waveguide body 5 including a coaxial waveguide conversion unit 6 that includes an inner space 8 and a connector attachment hole 22, and a closure member 30. The antenna device 1 also includes a connector 50 including a connector body 51, a center conductor 60, and a radiator 54 b configured by an end portion 60 a of the center conductor that adapts the protruding length of the end portion to a specific frequency band.

Abstract: In the antenna device, a first insulating plate, a capacitive coupling portion of a tuning plate, a radio wave absorber, a grounding portion of the tuning plate folded back to the back side of the radio wave absorber, and a tuning coated plate provided with a metallic plated film formed on the surface thereof are sequentially stacked below an antenna element having a shape obtained by removing an arched portion from a copper circular plate. Power is supplied from a center conductor of a semi-rigid signal input member to a power feeding unit of the antenna element. An external conductor is held between the upper and lower conductive cushions. A grounding plate is conductive with the external conductor, to ground the grounding portion and the tuning coated plate.

Abstract: The present invention performs characteristic tests on a communication device with a compact and simple configuration. A testing device 1 that performs characteristic tests in a near field on a communication antenna 250 of a communication device 240 includes a tray body 220 that supports the communication device in a test space S as an anechoic chamber, and a coupler support frame 520 that supports coupler antennas transmitting and receiving radio waves to/from the communication antenna 250. The coupler support frame can form inner-periphery coupler antenna arrays 300A and 300B each including a plurality of coupler antennas 300 arranged at least in a row along a curve extending along an inner peripheral surface composed of side surface 51 and S2, an upper surface S3, and a lower surface S4, and a rear coupler antenna array 300C including a plurality of coupler antennas 300 arranged at least in a row in an upper-lower direction along a curve extending along a rear surface S5.

Abstract: By performing continuous matching in an entire frequency band from 600 MHz to 6 GHz by one antenna device, communication with a plurality of types of communication devices having different used frequency bands becomes possible without switching the antenna device. In the antenna device, a first insulating plate 40, a capacitive coupling portion 45a of a tuning plate 45, a radio wave absorber 50, a grounding portion 45b of the tuning plate 45 folded back to the back side of the radio wave absorber 50, and a tuning coated plate 55 provided with a metallic plated film formed on the surface thereof are sequentially stacked below an antenna element 30 having a shape obtained by removing an arched portion from a copper circular plate. Power is supplied from a center conductor 64 of a semi-rigid signal input member 61 to a power feeding unit 33 provided in a part of a circular outer edge 32 of the antenna element 30.

Abstract: An object of the present invention is to suppress occurrence of disturbance in pass amplitude characteristics within a band and disturbance in return loss characteristics in the band due to total reflection, improve cutoff performance, and acquire a favorable gain. An antenna device 1 includes a waveguide body 5 including a coaxial waveguide conversion unit 6 that is hexahedral and includes an inner space 8 formed by penetrating a first surface and a second surface facing each other and a connector attachment hole 22 for inserting a coaxial connector continuously formed between a third surface orthogonal to the first surface and the second surface and the inner space, and a closure member 30 that is conductive and closes an opening of the inner space on the second surface side.