Work

Microwave Acoustic Device Integration for In-Band Full-Duplex Applications

Year: 2025

Type: article

Abstract: Simultaneous transmit and receive, or in-band full-duplex (IBFD), holds significant promise for radar and wireless communication systems using time-domain cancellation at radio frequencies. These systems rely on precise control of group delay to effectively mitigate self-interference. Piezoelectric-based traveling microwave acoustic wave devices provide a compact, passive means to implement such delays with high fidelity. This work explores the integration of piezoelectric acoustic delay lines to enhance self-interference cancellation (SIC) performance through precise group delay control and demonstrates SIC with such devices for a single tap demonstration.

Source: IEEE Journal of Microwaves

DOI: 10.1109/jmw.2025.3642700

Authors: Jack Guida, Chuan Tian, Kenneth E. Kolodziej, Siddhartha Ghosh

Institutions: Northeastern University, MIT Lincoln Laboratory

Language: English

Topic: Full-Duplex Wireless Communications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funders: National Science Foundation, Defense Advanced Research Projects Agency, United States Department of the Air Force