| 摘要 |
<p>A bidirectional radio frequency, RF, communication unit (6); comprising: a transmit modem (23); a receive modem (25); an RF transceiver circuit; a coupling waveguide arrangement; and an antenna (12); wherein: the antenna (12) is used for both receiving and transmitting; the RF transceiver circuit transmits and receives at RF frequencies greater than or equal to 50 GHz; at least the majority of the RF transceiver circuit is provided on a single multilayer pcb (32); the coupling waveguide arrangement is provided in the form of respective transmit and receive waveguides provided within a diplexer (34) that has a common antenna coupling port and is in the form of a block; the multilayer pcb (32) and the diplexer (34) form a laminated structure; and transition interfaces between the RF transceiver circuit and the waveguide comprise one or more buried layer probe elements in a buried layer of the multilayer pcb (32).</p> |
