RF Photonic Techniques for Same Frequency Simultaneous Duplex Antenna Operation

Same frequency, broadband, simultaneous transmit/ receive on the same antenna is facilitated by employing a balanced architecture to cancel that part of the transmit signal that leaks into the receive path. The concurrent detection of the receive signal and the cancellation of the transmitter leakag...

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Bibliographic Details
Published in:IEEE photonics technology letters 2007-07, Vol.19 (13), p.1014-1016
Main Authors: Gheorma, l.L., Gopalakrishnan, G.K.
Format: Article
Language:English
Subjects:
Antennas
Balancing
Broadband
Broadband antennas
Cancellation
Circulators
Duplexers
Filtering
Leakage
Modulators
Optical filters
Optical modulation
Optical transmitters
Photonics
Radio frequency
Receiving antennas
RF signals
Transmitters
Transmitting antennas
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Summary:Same frequency, broadband, simultaneous transmit/ receive on the same antenna is facilitated by employing a balanced architecture to cancel that part of the transmit signal that leaks into the receive path. The concurrent detection of the receive signal and the cancellation of the transmitter leakage into the receive path are accomplished in the optical domain with a dual-port optical modulator and a differential photodetector pair.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.898767