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Browse Journals & Magazines > Microwave Theory and Techniqu ...> Volume:46 Issue:11 Help

Quasi-optical transmit/receive front ends

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2 Author(s)
Popovic, Z. ; Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA ; Mortazawi, Amir

Quasi-optical (QO) active circuits have originally received interest for power generation by large-scale power combining of solid-state devices at microwave and millimeter-wave frequencies. Here, we present an overview of QO components developed with functionality in mind, with an emphasis on bidirectional amplifier arrays for transmit/receive (T/R) front ends. We discuss possible advantages of the QO architecture for communications and radar. The following three QO bidirectional arrays are presented: 1) a nine-element X-band patch antenna array with different polarizations in T/R modes; 2) a 24-element X-band slot lens array with switches for the T/R paths; and 3) a 22-element Kα-band patch lens array using monolithic microwave integrated circuits (MMICs)

Published in:
Microwave Theory and Techniques, IEEE Transactions on  (Volume:46 ,  Issue: 11 )

Date of Publication: Nov 1998

Page(s):
1964 - 1975
ISSN :
0018-9480
INSPEC Accession Number:
6107678
Digital Object Identifier :
10.1109/22.734521
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Nov 1998
Sponsored by :
IEEE Microwave Theory and Techniques Society

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