Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Patent
1997-09-02
1999-12-14
Wong, Don
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
343853, 333247, 257728, H01Q 138, H04B 138
Patent
active
060023759
ABSTRACT:
A radio-frequency circuit (20) includes a hybrid integrated circuit (24) having a passive circuit element (38) and a d-c biasing circuit element (54) embedded within a first substrate (32) of a low cost and rugged first semiconducting material, and first and second active circuit elements (36, 40) embedded within second and third substrates (44, 46), respectively, of a second semiconductor material having the characterisitics of greater frangibility but higher gain than the first semiconductor material. The first and second activ circuit elements (36, 40) are substantially first and second single components (36, 40), and are each electrically coupled to the passive circuit element (38). The d-c biasing circuit element (54) is electrically coupled to the first and second active circuit elements (36, 40). The second and third substrates (44, 46) are physically coupled to the first substrate (32), which is thicker than either the second or third substrate (44, 46).
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Brice-Heames Kenneth
Cook Dean Lawrence
Corman David Warren
Ma Stephen Chih-Hung
Torkington Richard Scott
Clinger James
Gorrie Gregory J.
Motorola Inc.
Wong Don
LandOfFree
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