Apparatus for TX/RX antenna switch in TDD wireless communication system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7787832
APP PUB NO 20080102763A1
SERIAL NO

11925410

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Abstract

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An apparatus including a TX/RX antenna switch (TRAS) in a time division duplex (TDD) wireless communication system is provided. In particular, an apparatus for protecting an RX low-noise amplifier (LNA) from a radio-frequency (RF) TX signal using a 180° hybrid coupler is provided. The TRAS apparatus includes a 180° hybrid coupler, a phase shifter and a combiner/divider unit.

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Patent Owner(s)

Patent OwnerAddress
NUVOTRONICS LLC7586 PEPPERS FERRY LOOP RADFORD VA 24141

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yoon, Hyun-Su Yongin-si, KR 25 221

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