发明公开
EP1540764A2 COMPACT, LOW PROFILE, SINGLE FEED, MULTI-BAND, PRINTED ANTENNA 审中-公开
COMPACT印花多频段天线低调,简单FEED

COMPACT, LOW PROFILE, SINGLE FEED, MULTI-BAND, PRINTED ANTENNA
摘要:
Printed circuit techniques and two-shot molding techniques are used to form a metal radiating element, a metal ground plane element, a metal antenna feed, a metal short-circuiting strip and metal capacitive loading plates within small antennas that are buried within transmit/receive radio-devices such a mobile cellular telephones. Balanced and unbalanced, single-feed, two and three band antennas are provided wherein the radiating element is laterally spaced from the ground plane element, to thereby provide an antenna having a very low profile or height, including antennas wherein the ground plane element and the radiating element are placed coplanar on the same surface of a PCB. A thin dielectric carriage on a PCB allows for the metal capacitive loading plates to be placed on the sidewalls of the dielectric carriage, to thereby provide reactive loading of a radiating element that is on the top surface of the dielectric carriage.
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