RF transceiver having a directly radiating transistor

Details RF transceiver having a directly radiating transistor RF transceiver having a directly radiating transistor

2007-05-29

2007-05-29

Phu, Sanh D. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

C455S073000, C455S523000, C455S082000, C342S021000, C342S022000

Reexamination Certificate

active

10763888

ABSTRACT:
Transistor package leads form quarter-wave antenna elements that directly radiate RF energy into free space without the need for a separate antenna. The transistor operates at a fundamental frequency and radiates a harmonic, thereby allowing radiation at frequencies normally considered “beyond cutoff” for a packaged transistor. This technique enables an additional 20 GHz of spectrum for use by surface mount technology. The transistor may be mounted on 1.6 mm thick glass-epoxy circuit board that also forms a quarter-wave reflector at 26 GHz. An optional dielectric lens produces a narrow beam and an optional planar filter rejects spurious fundamental emissions. A 26 GHz ultra-wideband (UWB) pulse-echo radar rangefinder implementation provides a low-cost upgrade to ultrasound.

REFERENCES:
patent: 3789296 (1974-01-01), Caruso, Jr. et al.
patent: 3922914 (1975-12-01), Fuchs
patent: 4322832 (1982-03-01), Sartorius
patent: 4766549 (1988-08-01), Schweitzer et al.
patent: 5438867 (1995-08-01), van der Pol
patent: 5457990 (1995-10-01), Oswald et al.
patent: 5609059 (1997-03-01), McEwan
patent: 5610611 (1997-03-01), McEwan
patent: 5767953 (1998-06-01), McEwan
patent: 5969666 (1999-10-01), Burger et al.
patent: 5986600 (1999-11-01), McEwan
patent: 6137438 (2000-10-01), McEwan
patent: 6191724 (2001-02-01), McEwan
patent: 6198424 (2001-03-01), Diede et al.
patent: 6300897 (2001-10-01), Kielb
patent: 6445192 (2002-09-01), Lovegren et al.
patent: 6452467 (2002-09-01), McEwan
patent: 6531977 (2003-03-01), McEwan
patent: 6586999 (2003-07-01), Richley
patent: 6700530 (2004-03-01), Nilsson
patent: 6972712 (2005-12-01), Karlsson

Affiliated with

Also associated with

Rating

RF transceiver having a directly radiating transistor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with RF transceiver having a directly radiating transistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RF transceiver having a directly radiating transistor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3764246