Portable communication device including loop antenna

Details Portable communication device including loop antenna Portable communication device including loop antenna

1996-11-27

1999-08-24

Wong, Don

Communications: radio wave antennas

Antennas

High frequency type loops

343702, 343866, 29600, H01Q 1112

Patent

active

059430222

ABSTRACT:
A portable communication device is described comprising a loop antenna. The loop antenna consists of a dielectric strip with overlapping conductive plates on both sides, so that capacitors are formed, which are arranged in series with one another. In order to have a good efficiency and at the same time a high insensitivity for detuning due to capacitive coupling of the antenna to the body of the user, the number of capacitors should be less than five an the capacitors should be arranged widely spaced over the loop.

REFERENCES:
patent: 2166750 (1939-02-01), Carter
patent: 4547776 (1985-10-01), Bolt, Jr. et al.
patent: 4922260 (1990-05-01), Gaskill et al.
patent: 5499398 (1996-03-01), Kudoh
patent: 5627552 (1997-05-01), Farrar et al.

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