MULTI-BAND HAC COMPATIBLE ANTENNA MODULE
First Claim
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1. A multi-band HAC compatible antenna module, comprising:
- a dielectric substrate, said dielectric substrate comprising a first substrate part, a second substrate part, and a metal ground covered on at least a part of the surface of said first substrate part;
an antenna holder protruded from a first side of said second substrate part of said dielectric substrate, said antenna holder being electrically insulative;
a single-pole antenna mounted in said antenna holder and adapted to produce a radiation in GSM850, GMS900, DCS and PCS bands;
a microband feed line connected to said single-pole antenna for feeding in signals; and
a metal shield mounted in a second side of said second substrate part of said dielectric substrate opposite to said antenna holder for resonant coupling with said single-pole antenna to lower electromagnetic interference and to improve hearing aids compatibility characteristic.
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Abstract
A multi-band HAC compatible antenna module having a metal shield arranged around the built-in antenna for resonant coupling with the antenna to lower electromagnetic interference and to improves hearing aids compatibility characteristic. When compared with a reference antenna without metal shield, the multi-band HAC compatible antenna module shows 3 dB˜4 dB HAC improvement in GSM850 and GSM900, and 1 dB HAC improvement in DCS and PCS bands.
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Citations
9 Claims
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1. A multi-band HAC compatible antenna module, comprising:
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a dielectric substrate, said dielectric substrate comprising a first substrate part, a second substrate part, and a metal ground covered on at least a part of the surface of said first substrate part; an antenna holder protruded from a first side of said second substrate part of said dielectric substrate, said antenna holder being electrically insulative; a single-pole antenna mounted in said antenna holder and adapted to produce a radiation in GSM850, GMS900, DCS and PCS bands; a microband feed line connected to said single-pole antenna for feeding in signals; and a metal shield mounted in a second side of said second substrate part of said dielectric substrate opposite to said antenna holder for resonant coupling with said single-pole antenna to lower electromagnetic interference and to improve hearing aids compatibility characteristic. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification