Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Patent
1992-12-09
1995-04-25
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
343700MS, 34082544, 455228, 455351, 455133, H04B 118
Patent
active
054107490
ABSTRACT:
A radio communication device (600) comprises a microstrip antenna (300) having a planar antenna element (302) and a ground plane (314) coupled to the planar antenna element (302). The microstrip antenna further comprises a dielectric material (304) positioned between the planar antenna element (302) and the ground plane (314), and a primary receiver element (325, 326, 328) mechanically coupled to the ground plane (314). The microstrip antenna (300) further comprises a feeder (308, 310) electrically coupled between the planar antenna element (302) and the primary receiver element (325, 326, 328) for feeding an intercepted radio signal therebetween for down conversion by the primary receiver element (325, 326, 328). The radio communication device (600) also comprises a secondary receiver element (828) coupled to the primary receiver element (325, 326, 328) for demodulating the intercepted radio signal after down conversion by the primary receiver element (325, 326, 328).
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Motorola "The Wrist Watch Pager" Series Numeric Display Pagers 138-173 MHz Service Manual 6881011B10-0, 1990 by Motorola, Inc.
Kuznicki William J.
Siwiak Kazimierz
Breeden R. Louis
Motorola Inc.
Sobutka Philip J.
Urban Edward F.
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