| Title | RF Coupling Suppression Circuit for Simultaneous Transmit and Receive Systems |
| Publication Type | Conference Paper |
| Year of Publication | 2020 |
| Authors | Tarek, Md Nurul Anwar, Novak, Markus, Alwan, Elias A. |
| Conference Name | 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting |
| Keywords | antennas, Bandwidth, coupled congestion control, Couplings, Finite impulse response filters, FIR resonator, Interference cancellation, pubcrawl, Radio frequency, Resiliency, Scalability, self-interference, STAR, Wireless communication |
| Abstract | Wireless technology is growing at a fast rate to accommodate the expanding user demands. Currently the radio frequency (RF) spectrum is highly congested and more susceptible to signal fratricide and interference. Therefore, full duplexing techniques are required to enhance the access to the spectrum. Simultaneous Transmit and receive systems (STAR), also known as in-band full duplex systems, are gaining higher attention due to their capability to double spectral efficiency. However, successful implementation of STAR systems requires significant isolation between the transmit and receive signals to reduce self-interference (SI) signal. To minimize this self-interference, front-end coupling cancellation circuits are employed in STAR system. In this paper, an RF coupling suppression circuit is presented based on a hybrid finite impulse response filter (FIR) and resonator architecture. Notably, this newly developed FIR-resonator circuit achieves \textbackslashtextgreater30dB cancellation across a \textbackslashtextgreater1.5:1 bandwidth. |
| DOI | 10.1109/IEEECONF35879.2020.9329641 |
| Citation Key | tarek_rf_2020 |
RF Coupling Suppression Circuit for Simultaneous Transmit and Receive Systems