Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2006-12-26
2006-12-26
Lee, Benny T. (Department: 2817)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C342S375000, C333S139000, C333S156000
Reexamination Certificate
active
07154440
ABSTRACT:
A constant-gain phase shifter is provided, comprising a first tank circuit with a first node to accept an input signal, a first inductor connected between the first node and a reference voltage, and a first capacitor connected in parallel with the first inductor. The first tank circuit modifies the phase and the insertion loss associated with the input signal. A variable gain circuit has as input connected to the first node, an input to accept a control signal, and an output to supply a gain-modified signal. A second tank circuit comprises a second node connected to the variable insertion loss circuit output to supply a constant-gain phase-shifted signal, a second inductor connected between the second node and the reference voltage, and a second capacitor connected in parallel with the second inductor. The second tank circuit modifies the phase and insertion loss associated with the gain-modified signal.
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Fabrega-Sanchez Jorge
Toncich Stanley S.
Kyocera Wireless Corp.
Lee Benny T.
LandOfFree
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