Dual channel downconverter for pulsed radio frequency...

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation

Reexamination Certificate

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C455S314000, C455S303000

Reexamination Certificate

active

07058377

ABSTRACT:
A dual channel downconverter that includes a two-channel heterodyne receiver architecture for downconverting two frequency-agile, pulsed RF signals to identical fixed IF signals without the use of a tunable local oscillator. This accomplishes downconversion while preserving, in the IF output signals, any amplitude modulations present in the RF signals. The device also preserves phase difference changes present in the RF signals while rejecting the phase modulations common to those input signals. The present device facilitates complex response measurements of pulsed two-port RF devices while operating in a target system such as a radar transmitter, including insertion gain, insertion phase, residual phase noise, error vector magnitude, AM noise, and group delay, all with increased accuracy, good repeatability, good dynamic range, and decreased measurement time.

REFERENCES:
patent: 4611165 (1986-09-01), Nussbaum
patent: 5027430 (1991-06-01), Yamauchi et al.
patent: 5179728 (1993-01-01), Sowadski
patent: 5493718 (1996-02-01), Bayruns et al.
patent: 5508605 (1996-04-01), Lo et al.
patent: 5524281 (1996-06-01), Bradley et al.
patent: 5659894 (1997-08-01), Bayruns et al.
patent: 5754951 (1998-05-01), Kashima et al.
patent: 5805460 (1998-09-01), Greene et al.
patent: 6215988 (2001-04-01), Matero
patent: 2002/0173337 (2002-11-01), Hajimiri et al.
patent: 2003/0161424 (2003-08-01), Varela et al.
patent: 2005/0096004 (2005-05-01), Tso et al.
patent: 2005/0237953 (2005-10-01), Carrender et al.

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