| US 7,542,735 B2 | ||
| Multi-octave differential upconverter | ||
| Mark Kintis, Manhattan Beach, Calif. (US); Flavia S. Fong, Monterey Park, Calif. (US); Alan Cherrette, Hermosa Beach, Calif. (US); Edward V. Koretzky, Hawthorne, Calif. (US); Juan Rivera, Torrance, Calif. (US); Gregory H. Rowan, Redondo Beach, Calif. (US); and Derrick M. Yamauchi, Torrance, Calif. (US) | ||
| Assigned to Northrop Grumman Corporation, Los Angeles, Calif. (US) | ||
| Filed on Oct. 20, 2006, as Appl. No. 11/584,276. | ||
| Prior Publication US 2008/0096498 A1, Apr. 24, 2008 | ||
| Int. Cl. H04B 1/04 (2006.01) | ||
| U.S. Cl. 455—114.1 [455/118] | 24 Claims |
| 1. An apparatus, comprising:
a differential amplifier configured to receive a multi-octave differential input signal and output an amplified multi-octave
differential output signal, wherein the differential amplifier is configured to substantially reduce second order harmonic
distortion of the amplified multi-octave differential output signal through common mode rejection;
a differential mixer configured to multiply the amplified multi-octave differential output signal with a local oscillator
input signal and output an up-converted sub-octave differential output signal;
wherein the multi-octave differential input signal and the up-converted sub-octave differential output signal comprise a substantially
same bandwidth.
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