SYSTEMS AND METHODS FOR SIGNAL PATH ISOLATION FOR NEUTRAL-HOST HARDWARE

Inventor: STEIGERT JOHANNES [US]

Applicant: COMMSCOPE TECHNOLOGIES LLC [US]

Published Jan. 19, 2023 View on Espacenet ↗

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2022-07-26	`P.102`	PCT/RO/102 - Notification Concerning Payment of Prescribed Fees and Annex	2	View
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2022-07-07	`SPEC`	Specification	24	View
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2022-07-07	`ABST`	Abstract	1	View
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2022-07-07	`P.N.101.ANX`	PCT/RO/101 Annex (fee calculation sheet)	1	View

Abstract

Systems and methods for signal path isolation for neutral-host hardware are provided. In one embodiment, an isolation circuit for a multiple-subchannel wireless communication transceiver comprises: a Tx path coupled to a transmit path output of a multiple-subchannel transceiver; a Rx path coupled to a receive path input of the transceiver; a precancellation circuit comprising: an isolation adjustment circuit within the transmit path of the isolation circuit, the isolation adjustment circuit comprising a phase shifter and a reflection tuner; a directional coupler within the Rx path of the isolation circuit. The isolation adjustment circuit outputs a reflected wave signal comprising a cancellation reference signal to the directional coupler. The cancellation reference signal comprises a complex conjugate of a TX signal leakage signal component of a signal transported in the Rx path of the isolation circuit. Within the directional coupler the cancellation reference signal destructively interferes with TX signal leakage signal component.

Inventors

STEIGERT JOHANNES [US]

Applicants

COMMSCOPE TECHNOLOGIES LLC [US]

IPC Classification

H04B 1/ 12 A I H04B 1/ 40 A I H04B 1/ 525 A I H04B 15/ 00 A I