Multi-Octave VHF Push-Pull Power Amplifier Using Coaxial Balun

被引：1

作者：

Sahoo, Anuj Kumar ^{[1
]}

Singhal, Hemant Kumar ^{[2
]}

Rawat, Karun ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Elect & Commun Engn, Roorkee, Uttar Pradesh, India

[2] Renesas Elect India Private Ltd, Bengaluru, India

来源：

2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年

关键词：

balun; harmonic suppression; power amplifier; push-pull;

D O I：

10.1109/MAPCON56011.2022.10047401

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A multi-octave push-pull power amplifier has been designed for VHF band applications. In order to validate the design, two 10-watt power amplifiers are fabricated and tested from 70 MHz to 350 MHz. The balun used in the push-pull configuration is designed using a coaxial transmission line, which can handle high power at the output. The coaxial line is encapsulated by ferrite beads to improve its performance in the lower frequency band. The balun has been characterized in terms of its mixed-mode S-parameters. The proposed push-pull architecture is tested using a 10 MHz long-term evolution signal. The second and fourth harmonics have been suppressed by more than 40 dB and 50 dB, respectively, between 70 MHz to 350 MHz.

引用

页码：157 / 160

页数：4

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