A Digital Polar and a ZVS Contour Based Hybrid Power Amplifier
- 技術優勢
- ZVS contour amplifier offers high efficiency in the low (<10 dB) back-off PAR regimeDigital polar amplifier offers high efficiency in the 10-36 dB PAR regimeHigh average efficiency, benefiting large personal mobile radio (PMR) signals like those used in orthogonal frequency digital multiplexing (OFDM)
- 技術應用
- Power amplifiers in wireless communications like WLAN, LTE, and WIMAX
- 詳細技術說明
- Researchers in UCLA’s Department of Electrical Engineering have built upon recent power amplifier innovations to create a hybrid digital polar and zero switching voltage (ZVS) contour power amplifier. This hybrid system has the potential to double the efficiency of traditional RF transmitters, making it ideal for use in wideband digital communications.The contour amplifier allows for high efficiency below the 10 dB back-off, while the digital polar amplifier can easily attain up to 36 dB peak-to-average ratio (PAR).
- *Abstract
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Researchers in the UCLA Department of Electrical Engineering have created a hybrid digital polar and zero switching voltage (ZVS) contour power amplifier, offering higher efficiency for up to 36 dB peak-to-average ratio.
- *IP Issue Date
- Jun 30, 2015
- *Principal Investigation
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Name: Sudhakar Pamarti
Department:
Name: Nitesh Singhal
Department:
- 申請號碼
- 9071204
- 其他
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State Of Development
Researchers at UCLA’s department of Electrical Engineering are currently developing a proof-of-concept CMOS chip based on 130 nm CMOS architecture in order to validate their detailed simulations and theoretical foundations for this technology.
Background
Traditional power amplifiers are biased in order to maximize their efficiency at a given operating power. However, this makes them less efficient at lower power levels.Both high and low power levels can be important in wireless communications, where a large peak to average power ratio is common.Other hybrid approaches are theoretically efficient in their given power regimes, but high bandwidth modulations can suffer from supply regulator inefficiency.
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Tech ID/UC Case
28976/2012-107-0
Related Cases
2012-107-0
- 國家/地區
- 美國
