Referenced Items are not available for this document.
This paper describes the behavior of a compact two-port integrated mixer active antenna element with low cross polarization, high two-port circuit isolation, and good mixer detection sensitivity. Using this element as an elemental building block, a self-tracking antenna array has been realized which uses an in-band carrier signal for self calibration. The array is relatively insensitive to absolute carrier power level and is capable of tracking incoming signals over ±80°. By minor alteration of the antenna topology, a minimum complexity variant of a heterodyne retrodirective array has been demonstrated over a ±40° retransmission angle. Finally, the use of the antenna in conjunction with an injection-locked voltage-controlled oscillator (VCO) is included in order to demonstrate ±35° phase-shifterless beam steering
Published in:
Antennas and Propagation, IEEE Transactions on
(Volume:45
,
Issue:
12
)
Date of Publication: Dec 1997
- Page(s):
- 1863 - 1868
- ISSN :
- 0018-926X
- INSPEC Accession Number:
- 5811940
- Digital Object Identifier :
- 10.1109/8.650206
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Dec 1997
- Sponsored by :
- IEEE Antennas and Propagation Society
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