Peak-to-Average Power Ratio Characteristics of WCDMA over Satellite Communication Links

Oetting, J.

doi:10.1109/milcom.2007.4454887

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…For data rate enhancement and the utilization of the full system capacity, most communication systems of the third generation (3G) and the fourth generation (4G), use spectrally highly efficient signals [1]. Modern wireless communication systemssuch as Wideband Code Division Multiple Access (WCD-MA), Code Division Multiple Access (CDMA)-2000 and Long Term Evolution (LTE), use digital modulation techniques which produce signals with high peakto-average power ratio (PAPR) [2], [3]. This puts the emphasis on the importance of improving the average efficiency of RF power amplifiers (PAs) when driven with high PAPR signals by reducing their power consumption in the back-off region.…”

Section: Introductionmentioning

confidence: 99%

A 4 GHz High-Efficiency High-Linearity GaN Doherty Power Amplifier with Dual DC-Power Supplies

Liu¹,

Cheng²

2015

IJIES

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This paper elaborates the basic operation principle of the Doherty power amplifier (DPA) and analyzes the method of improving the linearity of the DPA. A novel DPA with dual DC power supplies and a high linearity is designed and implemented at the operating frequency of 4 GHz. EM (Electro Magnetic)/Circuit Co-Simulation shows that under one tone test, the DPA can obtain the high performance of the 40.4 dBm saturated output power, about 63% maximum power added efficiency (PAE) and about 50% PAE at 6 dB output power back-off (OBO). Under two tones test, the third order inter-modulation distortion (IMD3) is less than-30 dBc when the input power is less than 27dBm. Moreover the DPA delivers the maximum PAE of 61% with the corresponding input power of 26.5 dBm and output power of 38.5 dBm respectively.

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Section: Introductionmentioning

confidence: 99%

A 4 GHz High-Efficiency High-Linearity GaN Doherty Power Amplifier with Dual DC-Power Supplies

Liu¹,

Cheng²

2015

IJIES

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“…WCDMA has proven to be a promising technique for terrestrial cellular communications (Oetting, 2007). With a 4,096 kbps spreading rate and a pulse shaping roll-off factor of 0.22, which translates to a wide bandwidth operation, adjacent channel interference has become one of the most critical issues for WCDMA integration (Lilja and Mattila, 1999a).…”

Section: Introductionmentioning

confidence: 99%

A high gain and high linearity class-AB power amplifier for WCDMA applications

Ramiah

Eswaran²,

Kanesan³

2013

Microelectronics International

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Purpose -The purpose of this paper is to design and realize a high gain power amplifier (PA) with low output back-off power using the InGaP/GaAs HBT process for WCDMA applications from 1.85 to 1.91 GHz. Design/methodology/approach -A three stages cascaded PA is designed which observes a high power gain. A 100 mA of quiescent current helps the PA to operate efficiently. The final stage device dimension has been selected diligently in order to deliver a high output power. The inter-stage match between the driver and main stage has been designed to provide maximum power transfer. The output matching network is constructed to deliver a high linear output power which meets the WCDMA adjacent channel leakage ratio (ACLR) requirement of 2 33 dBc close to the 1 dB gain compression point. Findings -With the cascaded topology, a maximum 31.3 dB of gain is achieved at 1.9 GHz. S11 of less than 2 18 dB is achieved across the operating frequency band. The maximum output power is indicated to be 32.7 dBm. An ACLR of 2 33 dBc is achieved at maximum linear output power of 31 dBm. Practical implications -The designed PA is an excellent candidate to be employed in the WCDMA transmitter chain without the aid of additional driver amplifier and linearization circuits. Originality/value -In this work, a fully integrated GaAs HBT PA has been implemented which is capable to operate linearly close to its 1 dB gain compression point.

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A Highly Efficient and Broadband Doherty Power Amplifier Design for 5G Base Station

Singh

Chawla

2021

Proceedings of International Conference on Data Science and Applications

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Peak-to-Average Power Ratio Characteristics of WCDMA over Satellite Communication Links

Cited by 5 publications

References 6 publications

A 4 GHz High-Efficiency High-Linearity GaN Doherty Power Amplifier with Dual DC-Power Supplies

A 4 GHz High-Efficiency High-Linearity GaN Doherty Power Amplifier with Dual DC-Power Supplies

A high gain and high linearity class-AB power amplifier for WCDMA applications

A Highly Efficient and Broadband Doherty Power Amplifier Design for 5G Base Station

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