Electrical balanced duplexer-based duplexer

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United States of America Patent

PATENT NO 11791974
APP PUB NO 20220416991A1
SERIAL NO

17899556

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Abstract

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An electrical balance duplexer (EBD) may be used to isolate a transmitter and receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the EBD to cut-off access to the common antenna rather than duplicate the antenna impedance, the EBD is balanced. Such cut-offs may have a lower insertion loss than an EBD that merely duplicates the antenna impedance to separate the differential signals of the receiver/transmitter from the common mode signal.

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Patent Owner(s)

Patent OwnerAddress
APPLE INCCUPERTINO CA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hur, Joonhoi Sunnyvale, US 84 290
Muharemovic, Nedim Nuremberg, DE 14 10
Vazny, Rastislav Sunnyvale, US 62 63

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