Fully-integrated, programmable, polar-modulated class E power amplifier

Jennifer Kitchen; Ilker Deligoz; Sayfe Kiaei; Bertan Bakkaloglu

Fully-integrated, programmable, polar-modulated class E power amplifier

Jennifer Kitchen, Ilker Deligoz, Sayfe Kiaei, Bertan Bakkaloglu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Software-defined radio (SDR) is a rapidly evolving technology that offers reconfigurablilty and interoperability in radios, but poses challenges in designing highly efficient, programmable hardware modules. The RF front-end transmit path, specifically the power amplifier (PA), is one of the major bottlenecks in SDR implementations, as current state-of-the-art power amplifiers cannot support the modulation bandwidths and dynamic range required to implement SDR systems in low-power wireless handsets. This work presents a polar-modulated SiGe CMOS class-E power amplifier with switch-mode supply modulator (SMPS) that is designed for an RF frequency near 900MHz and a variable envelope BW from baseband to 10MHz. The output filter of the SMPS is eliminated in order to implement the Class E PA and supply modulator on the same chip and reduce the number of filter banks required for SDR applications. The envelope dynamic range is 16dB with an ACPR of -43dBc for a GSM/EDGE waveform. The maximum PA efficiency with constant supply voltage is 62%. When operating the supply modulator with a switching speed of 4.3MHz at 50% duty cycle, the system efficiency is 41%.

Original language	English (US)
Title of host publication	Proceedings of the IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS
Volume	2006
State	Published - 2006
Event	IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS - Banff, AB, Canada Duration: Jul 3 2006 → Jul 4 2006

Other

Other	IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS
Country/Territory	Canada
City	Banff, AB
Period	7/3/06 → 7/4/06

Keywords

DC-DC converter
Polar modulation
Power amplifiers
RF transmitter
Software defined radio

ASJC Scopus subject areas

General Engineering

Cite this

Fully-integrated, programmable, polar-modulated class E power amplifier. / Kitchen, Jennifer; Deligoz, Ilker; Kiaei, Sayfe et al.
Proceedings of the IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS. Vol. 2006 2006.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kitchen, J, Deligoz, I, Kiaei, S & Bakkaloglu, B 2006, Fully-integrated, programmable, polar-modulated class E power amplifier. in Proceedings of the IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS. vol. 2006, IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS, Banff, AB, Canada, 7/3/06.

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keywords = "DC-DC converter, Polar modulation, Power amplifiers, RF transmitter, Software defined radio",

author = "Jennifer Kitchen and Ilker Deligoz and Sayfe Kiaei and Bertan Bakkaloglu",

year = "2006",

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volume = "2006",

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note = "IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS ; Conference date: 03-07-2006 Through 04-07-2006",

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AU - Kitchen, Jennifer

AU - Deligoz, Ilker

AU - Kiaei, Sayfe

AU - Bakkaloglu, Bertan

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AB - Software-defined radio (SDR) is a rapidly evolving technology that offers reconfigurablilty and interoperability in radios, but poses challenges in designing highly efficient, programmable hardware modules. The RF front-end transmit path, specifically the power amplifier (PA), is one of the major bottlenecks in SDR implementations, as current state-of-the-art power amplifiers cannot support the modulation bandwidths and dynamic range required to implement SDR systems in low-power wireless handsets. This work presents a polar-modulated SiGe CMOS class-E power amplifier with switch-mode supply modulator (SMPS) that is designed for an RF frequency near 900MHz and a variable envelope BW from baseband to 10MHz. The output filter of the SMPS is eliminated in order to implement the Class E PA and supply modulator on the same chip and reduce the number of filter banks required for SDR applications. The envelope dynamic range is 16dB with an ACPR of -43dBc for a GSM/EDGE waveform. The maximum PA efficiency with constant supply voltage is 62%. When operating the supply modulator with a switching speed of 4.3MHz at 50% duty cycle, the system efficiency is 41%.

KW - DC-DC converter

KW - Polar modulation

KW - Power amplifiers

KW - RF transmitter

KW - Software defined radio

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M3 - Conference contribution

AN - SCOPUS:34047100883

VL - 2006

BT - Proceedings of the IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS

T2 - IASTED International Conference on WIRELESS SENSOR NETWORKS, Part of the Sixth IASTED International Multi-Conference on WIRELESS AND OPTICAL COMMUNICATIONS

Y2 - 3 July 2006 through 4 July 2006

ER -

Fully-integrated, programmable, polar-modulated class E power amplifier

Abstract

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Keywords

ASJC Scopus subject areas

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