Smith, R. M., Lees, Jonathan  ORCID: https://orcid.org/0000-0002-6217-7552, Tasker, Paul J. ORCID: https://orcid.org/0000-0002-6760-7830, Benedikt, Johannes ORCID: https://orcid.org/0000-0002-9583-2349 and Cripps, Stephen Charles ORCID: https://orcid.org/0000-0002-2258-951X
2012.
A 40W push-pull power amplifier for high efficiency, decade bandwidth applications at microwave frequencies.
Presented at: 2012 IEEE MTT-S International Microwave Symposium Digest (MTT,
Montreal, Canada,
17-22 June 2012.
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International.
IEEE,
pp. 1-3.
10.1109/MWSYM.2012.6259418
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Abstract
A high-efficiency push-pull power amplifier has been designed and measured across a bandwidth of 250MHz to 3.1GHz. The output power was 46dBm with a drain efficiency of above 45% between 700MHz and 2GHz, with a minimum output power of 43dBm across the entire band. In addition, a minimum of 60% drain efficiency and 11dB transducer gain was measured between 350MHz and 1GHz. The design was realized using a coaxial cable transmission line balun, which provides a broadband 2∶1 impedance transformation ratio and reduces the need for bandwidth-limiting conventional matching. The combination of output power, bandwidth and efficiency are believed to be the best reported to date at these frequencies.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Uncontrolled Keywords: | Balun, high efficiency, microwave amplifiers, power amplifiers, push-pull, wideband |
| Publisher: | IEEE |
| Last Modified: | 24 Oct 2022 10:24 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/44198 |
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