Modulated backscatter microstrip patch antenna

Details Modulated backscatter microstrip patch antenna Modulated backscatter microstrip patch antenna

1996-07-23

1998-10-20

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Microstrip

343876, 340572, 342 51, H01Q 138

Patent

active

058253297

ABSTRACT:
The invention provides a microstrip patch antenna for emitting backscatter-modulated signals in response to a received signal. The antenna has two segments that are connected together by a switch. When the switch is ON, the antenna is a full wave length antenna with its two segments out-of-phase with each other, thus producing minimal backscatter. When the switch is OFF, the two segments of the antenna act in concert with each other to produce a backscatter-modulated signal. Multiple pairs of such antennas can be connected together to make a single antenna with increased signal power.

REFERENCES:
patent: 4075632 (1978-02-01), Baldwin et al.
patent: 4296414 (1981-10-01), Beyer et al.
patent: 4360810 (1982-11-01), Landt
patent: 4471344 (1984-09-01), Williams
patent: 4736207 (1988-04-01), Siikarla et al.
patent: 4737793 (1988-04-01), Munson et al.
patent: 4739328 (1988-04-01), Koelle et al.
patent: 4786907 (1988-11-01), Koelle
patent: 4804961 (1989-02-01), Hane
patent: 4908629 (1990-03-01), Apsell et al.
patent: 4912481 (1990-03-01), Mace et al.
patent: 4918296 (1990-04-01), Fujisaka
patent: 5030940 (1991-07-01), Siikarla
patent: 5053774 (1991-10-01), Schuermann
patent: 5099226 (1992-03-01), Andrews
patent: 5103222 (1992-04-01), Esch et al.
patent: 5119099 (1992-06-01), Haruyama et al.
patent: 5122809 (1992-06-01), Haruyama et al.
patent: 5173711 (1992-12-01), Takeuchi et al.
patent: 5201065 (1993-04-01), Niehenke
patent: 5216419 (1993-06-01), Fujisaka et al.
patent: 5231273 (1993-07-01), Caswell et al.
patent: 5241160 (1993-08-01), Bashan et al.
patent: 5512911 (1996-04-01), Oprea
Hall et al., The ARRL Antenna Book , (no month) 1993, pp. 2-6--2-10.

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