Single side band modulator

Details Single side band modulator Single side band modulator

2005-02-01

2005-02-01

Chin, Stephen (Department: 2634)

Pulse or digital communications

Transmitters

Amplitude modulation

C332S170000

Reexamination Certificate

active

06850575

ABSTRACT:
The present invention relates to a single side band modulator for splitting a signal into a first split signal and a second split signal 90 degrees out of phase with the first split signal. A first double balanced mixer modulates the first split signal and includes a transformer, a modulating signal input, and a first diode ring. The transformer connects the first diode ring to a quadrature hybrid. A second double balanced mixer modulates the second split signal and includes a transformer, a modulating signal input, and a second diode ring. The transformer of the second double balanced mixer connects the second diode ring to the quadrature hybrid. The first and second diode rings are connected in parallel and are connected to a third transformer which performs the function of a power combiner.

REFERENCES:
patent: 3831097 (1974-08-01), Neuf
patent: 4002969 (1977-01-01), Barley et al.
patent: 4063176 (1977-12-01), Milligan et al.
patent: 4125810 (1978-11-01), Pavio
patent: 4224572 (1980-09-01), Will
patent: 4306311 (1981-12-01), Igarashi
patent: 4768000 (1988-08-01), Pavio et al.
patent: 5367271 (1994-11-01), Yamamoto et al.
patent: 5416449 (1995-05-01), Joshi
patent: 6029059 (2000-02-01), Bojer
patent: 6054948 (2000-04-01), Dean
patent: 6441783 (2002-08-01), Dean
patent: 6496545 (2002-12-01), Liu
Shankar R. Joshi, “Novel I/Q Modulators Mix Cellular Signals,” Synergy® Microwave Corp., [Retrieved Apr. 19, 2002]. Retrieved from the Internet <URL:www.synergymwave.com/products/moddemod/moddemodpdf/Mod_demodTutorial.pdf> , no date listed.
“Mixers,” Synergy® Microwave Corp., [Retrieved Apr. 19, 2002] Retrieved from the Internet <URL:www.synergymwave.com/products/mixers/mixers_pdf/MixerTutorial.pdf> , no date listed.
“Modulators,” Mini-Circuits®, [Retrieved Apr. 18, 2002] Retrieved from the Internet <URL:www.minicircuits.com/appnote/mod11-2.pdf> (last modified Jul. 17, 2001).
Michael Ellis, “Introduction to Mixers,” 1999. <URL:members.tripod.com/michaelgellis/mixersm.html>.
Ian Purdie, “Ian Purdie's Amateur Radio Tutorial Pages: Double Balanced Mixers and Baluns,” © 1999. <URL:my.integritynet.com.au/purdic/dbl_bal_mix.htm>.

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