Theoretical Bounds of the Self-Interference Cancellation-Bandwidth Integral in Full Duplex RF Front Ends

Dror Regev, Itamar Melamed, Nimrod Ginzberg, Emanuel Cohen

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

This paper studies the behavior of lumped self-interference cancellation (SIC) filters in simultaneous transmit-receive (STR) RF front ends. The crux that enables a different approach in this work for finding an optimal network solution is converting the SIC circuit design flow into an equivalent impedance-matching problem. As a result, we analyze a reflective SIC filter that complies with electric-balance duplexers utilizing known techniques. Bode, Fano, Matthaei, and others studied lumped network theory considerations and devised methodical steps for maximizing the impedance-matching bandwidth for reactive loads. Accordingly, a systematic approach that considers the analysis of the SIC-Bandwidth mutual relationship, and the optimal lumped networks, is detailed in this work. We indicate that the Chebyshev band-pass filter can provide optimal and lossless SIC filter performance, which is crucial for the overall STR performance. The realistic RF front-end in this work, which includes a simulated quadrature hybrid, and a measured Wi-Fi antenna with VSWR of 3:1, achieves > 40 dB of TX-RX isolation over 200 MHz around 5.5 GHz, utilizing a second order filter that employs only two realizable inductors.

اللغة الأصليةالإنجليزيّة
عنوان منشور المضيفProceedings of the 2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2023
رقم المعيار الدولي للكتب (الإلكتروني)9798350338805
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 19 أبريل 2023
الحدث2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2023 - Waco, الولايات المتّحدة
المدة: ١٩ أبريل ٢٠٢٣٢٠ أبريل ٢٠٢٣

سلسلة المنشورات

الاسم2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)

!!Conference

!!Conference2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2023
الدولة/الإقليمالولايات المتّحدة
المدينةWaco
المدة١٩/٠٤/٢٣٢٠/٠٤/٢٣

All Science Journal Classification (ASJC) codes

  • !!Instrumentation
  • !!Electrical and Electronic Engineering
  • !!Computer Networks and Communications

بصمة

أدرس بدقة موضوعات البحث “Theoretical Bounds of the Self-Interference Cancellation-Bandwidth Integral in Full Duplex RF Front Ends'. فهما يشكلان معًا بصمة فريدة.

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