학술논문

A bi-directional quasi-optical lens amplifier
Document Type
Periodical
Source
IEEE Transactions on Microwave Theory and Techniques IEEE Trans. Microwave Theory Techn. Microwave Theory and Techniques, IEEE Transactions on. 45(12):2352-2357 Dec, 1997
Subject
Fields, Waves and Electromagnetics
Bidirectional control
Lenses
Switches
Slot antennas
Feeds
Antenna measurements
Circuits
Microstrip antennas
Loss measurement
Impedance
Language
ISSN
0018-9480
1557-9670
Abstract
A 24-element bi-directional quasi-optical lens amplifier array is presented. The lens amplifier array is designed for X-band, and operates in transmission mode. Single-pole double-throw (SPDT) switches are used to switch between transmit and receive amplifiers. The lens amplifier array demonstrates gains of 5.5 dB at 10.1 GHz in receive mode, and 2 dB at 10.2 GHz in transmit mode, with more than 15-dB ON/OFF isolation. Several applications for the lens amplifier array are demonstrated: a quasi-optical transceiver front-end, reduction of multipath fading, and a multiuser frequency reuse application.