Phase shifter module whose linear polarization and resonant...

Details Phase shifter module whose linear polarization and resonant... Phase shifter module whose linear polarization and resonant...

2008-04-15

2008-04-15

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Slot type

C343S770000, C343S876000

Reexamination Certificate

active

11086304

ABSTRACT:
A phase shifter module (CD), dedicated to a reflectarray antenna, is defined by a characteristic resonant length and, in at least one chosen place, has an MEMS type device (DC, DC′) able to be placed in at least two different states respectively permitting and prohibiting the establishing of a short-circuit intended to vary said resonant length, in order to vary the phase shifting of a wave to be reflected presenting at least one linear polarization.

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P. M. Backhouse et al, “Antenna-Coupled Microwave Phase Shifters Using GAAS Varactors”, Electronics Letters, IEE Stevenage, GB< vol. 27, No. 6, Mar. 14, 1991, pp. 491-492, XP000225079.
H. S. Newman—Institute of Electrical and Electronics Engineers: “RF MEMS Switches and applications”, 2002 IEEE International Reliability Physics Symposium Proceedings. 40thAnnual. Dallas, TX, Apr. 7-11, 2002, IEEE International A Reliability Physics Symposium, NY, NY, IEEE, Apr. 7, 2002, pp. 111-115, XP010589210.
Kim Jung-Mu et al, “A 5-17 ghz wideband reflection-type phase shifter using digitally operated capacitive mems switches”, Conference Proceedings Articles, vol. 1, Jun. 9, 2003, pp. 907-910, XP010646855.

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