Referenced Items are not available for this document.
A FET-IC mixer that uses a Gilbert-cell multiplier with a single-to-balance conversion input buffer is proposed. The key point in the FET-IC mixer design is that a single-to-balance conversion input buffer is used to improve the amplitude and phase balance of signals output from the input buffer stage. Excellent squaring characteristics were achieved in the range from 0 to -25 dBm. The FET-IC mixer was successfully tested in a 2.5 Gb/s CPFSK demodulator for optical heterodyne reception. Compared to the best diode passive double-balanced diode mixers, receiver sensitivity was improved by 1 dB at +10 dBm electrical input power. Very small degradation in receiver sensitivity, less than 3 dB, was achieved at electrical input power levels ranging from +10 to -10 dBm.<
Published in:
Photonics Technology Letters, IEEE
(Volume:3
,
Issue:
11
)
Date of Publication: Nov. 1991
- Page(s):
- 1015 - 1018
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 4089603
- Digital Object Identifier :
- 10.1109/68.97846
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Nov. 1991
- Sponsored by :
- IEEE Photonics Society
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