Communications: directive radio wave systems and devices (e.g. – With particular circuit – For frequency modulation
Patent
1997-11-21
1999-07-20
Pihulic, Daniel T.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
For frequency modulation
G01S 1300, H01P 308
Patent
active
059261293
ABSTRACT:
A combined duplexer/mixer (2) for use with FMCW radar systems has a waveguide section (12,13) containing a fin-line structure (17,18) for responding to the linearly polarized radar return signal while permitting passage of the orthogonally polarized transmitted signal (T). A portion of the transmitted signal is extracted by a patch antenna (22), this extracted signal forming a local oscillator signal for mixing with the return.
REFERENCES:
patent: 4122449 (1978-10-01), Endo
patent: 4731611 (1988-03-01), Muller et al.
patent: 4777654 (1988-10-01), Conti
patent: 4991228 (1991-02-01), Ohta et al.
patent: 5315303 (1994-05-01), Tsou et al.
Anderson John
Ephgrave Barry
Skidmore David
Waterman Stanley W
Matra BAe Dynamics (UK) Limited
Pihulic Daniel T.
LandOfFree
Transceivers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transceivers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transceivers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1325493