Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Patent
1998-06-01
2000-01-18
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
333159, H01P 118
Patent
active
060161221
ABSTRACT:
A phased array antenna (1000) is formed using a number of independently controllable piezoelectric phase shifters (1300) which results in a low cost phased array antenna that is functional at microwave and/or millimeter wave frequencies. In addition, the independently controllable piezoelectric phase shifters (1300) have sufficient phase range to allow a single antenna to be steered over a wide angle field of view. Piezoelectric phase shifters (1300) comprise at least one-voltage variable capacitor (1310, 1320, FIG. 2). Typically, the piezoelectric material used in the voltage variable capacitors is selected from a group consisting of lead-titanate (PbTiO.sub.3), lead-zirconate (PbZrO.sub.3), barium-titanate (BaTiO.sub.3), and lead-zirconate-titanate (PbZr.sub.x Ti.sub.1-x O.sub.3), where x varies from zero to one.
REFERENCES:
patent: 3166723 (1965-01-01), Bock et al.
patent: 4127834 (1978-11-01), Stringfellow et al.
patent: 4238662 (1980-12-01), Lao
patent: 4292659 (1981-09-01), Lao
patent: 4380747 (1983-04-01), Curtinot et al.
patent: 5504466 (1996-04-01), Chan-Son-Lint et al.
patent: 5543765 (1996-08-01), Cachier
Cook Dean Lawrence
Dendy Deborah Sue
Kommrusch Richard S.
Malone Hugh Robert
Phillips James R.
Hellner Mark
Klekotka James E.
Motorola Inc.
Nielsen Walter W.
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