Phased array antenna with extended resonance power...

Details Phased array antenna with extended resonance power... Phased array antenna with extended resonance power...

2011-03-15

2011-03-15

Lee, Benny (Department: 2817)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C333S125000, C333S136000, C333S139000, C333S164000

Reexamination Certificate

active

07907100

ABSTRACT:
A phased array for controlling a radiation pattern of an array of antennas includes a plurality of antenna ports, a first tunable element connected in series between each respective pair of adjacent antenna ports, and a second tunable element connected in parallel with each respective antenna port. The phased array provides progressive phase differences between successive antenna ports Equal amplitude of the signal can be maintained at each antenna. An equal amount of successive phase change can be provided in a signal at each antenna. A direct current source connectible to at least one input port can include an alternating power source through a matching circuit, such as a quarter-wave transformer The first and second tunable elements can be either an inductor or a capacitor, and/or can be in combination with transmission lines separating each respective antenna from a successive antenna by desired fraction of a wavelength.

REFERENCES:
patent: 3340530 (1967-09-01), Sullivan et. al.
patent: 3882431 (1975-05-01), Hopwood et al.
patent: 5014023 (1991-05-01), Mantele
patent: 6496147 (2002-12-01), Kirino
patent: 2005/0270122 (2005-12-01), Hyman et al.

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