Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1995-03-16
1996-02-27
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343700MS, 343702, H01Q 138
Patent
active
054952603
ABSTRACT:
A paging receiver (100) comprises a printed circuit board (200) on which receiving circuitry (110) is mounted. The printed circuit board (200) comprises a plurality of conductive runners (205, 210, 305, 310) which form a dipole antenna (105) for providing radio frequency signals to the receiving circuitry (110). First and second elongated runners (205, 210) are plated on a first surface (215) of the printed circuit board (200) along a single axis. Third and fourth elongated runners (305, 310) are plated on a second surface (300) of the printed circuit board (200) parallel to and beneath the first and second elongated runners (205, 210), respectively. The first and third runners (205, 305) are electrically coupled via a first plated hole (230) to form a first monopole element of the dipole antenna (105) for providing the signals to the receiving circuitry (110), and the second and fourth runners (210, 310) are electrically coupled via a second plated hole (240) to form a second monopole clement of the dipole antenna (105).
REFERENCES:
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patent: 5293176 (1994-03-01), Elliot
Gardner Kelly A.
Hajec Donald T.
Motorola Inc.
Phan Tho
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