RF Performance of USRP TwinRX Daughterboard Under Influence of Strong Interferers

Engelhardt M, Andrich C, Ihlow A, Del Galdo G (2022)

Publication Type: Conference contribution

Publication year: 2022

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2022 16th European Conference on Antennas and Propagation, EuCAP 2022

Event location: Madrid, ESP

ISBN: 9788831299046

Abstract

In this paper, we investigate the sensitivity of the software-defined radio (SDR) universal software radio peripheral (USRP) X310 with a TwinRX daughterboard to strong interferers. In a conducted test setup, the signal-to-interference-plus-noise ratio (SINR) is measured under the influence of a mock-up Long-Term Evolution (LTE) base station. The frequency of the interferer is varied to analyze the effects over a wide frequency band, whereby a distinction is made between signals inside and outside the intermediate frequency (IF) band. The former can cause clipping at the analog-to-digital converter (ADC), while the latter are to be suppressed in the analog part of the software-defined radio. Here, leakage and higher-order mixing products make the receiver sensitive to spurious frequencies, whereby the performance degradation is particularly noticeable near the first intermediate frequency (IF1) of 1.25 GHz. At this point, even an interference signal with-28 dBm peak envelope power (PEP) causes an SINR loss of 3 dB.

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE) Technische Universität Ilmenau DE Germany (DE)

How to cite

APA:

Engelhardt, M., Andrich, C., Ihlow, A., & Del Galdo, G. (2022). RF Performance of USRP TwinRX Daughterboard Under Influence of Strong Interferers. In 2022 16th European Conference on Antennas and Propagation, EuCAP 2022. Madrid, ESP: Institute of Electrical and Electronics Engineers Inc..

MLA:

Engelhardt, Maximilian, et al. "RF Performance of USRP TwinRX Daughterboard Under Influence of Strong Interferers." Proceedings of the 16th European Conference on Antennas and Propagation, EuCAP 2022, Madrid, ESP Institute of Electrical and Electronics Engineers Inc., 2022.

BibTeX: Download