3~5 GHz Cascoded UWB Power Amplifier

Wang, Ruey-Lue; Su, Yan–Kuin; Liu, Chien-Hsuan

doi:10.1109/apccas.2006.342446

Cited by 22 publications

(20 citation statements)

References 6 publications

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“…It is to be noted that the H2D-MP model can be implemented in a FPGA according to the time-mutiplexing method given in [26], where additional IMD terms have to be included in memory space calculation apart from 2D-MP terms.…”

Section: Measurement Results For Dpd Applicationmentioning

confidence: 99%

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Concurrent Dual-Band Modeling and Digital Predistortion in the Presence of Unfilterable Harmonic Signal Interference

Rawat

Roblin

Quindroit

et al. 2015

IEEE Trans. Microwave Theory Techn.

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Motivated by advanced-generation signals and corresponding trends for multiband, broadband, and ultra-wideband transmitters, several models have recently been proposed for digital predistortion in a dual-band concurrent transmission. These state-of-the-art models assume that two frequencies of operation are uncorrelated and harmonic products can be filtered out. However, when the harmonic of one signal falls on the frequency band of another signal, it cannot be removed with filters. This paper proposes a 3-D harmonic memory polynomial based model for the dual-band concurrent transmission in the presence of harmonic interferences. The model is extracted and predistortion is implemented using a low-cost field-programmable gate-array-based system including a transmitter and a feedback receiver. Using the proposed model, a performance improvement up to 22 dB in terms of normalized mean square error and performance improvement up to 20 dB in terms of the adjacent channel power ratio is achieved compared to a conventional dual-band memory polynomial model not including harmonics.

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Section: Measurement Results For Dpd Applicationmentioning

confidence: 99%

“…However, recently, research in PA design is pushing towards ultra-wideband application [26], which, in turn, raised concern of interference from harmonics, which might fall within the working range of ultra-wideband power. Keeping this futuristic trend in mind, there had been very few recent attempts to model PA harmonics [27].…”

mentioning

confidence: 99%

Concurrent Dual-Band Modeling and Digital Predistortion in the Presence of Unfilterable Harmonic Signal Interference

Rawat

Roblin

Quindroit

et al. 2015

IEEE Trans. Microwave Theory Techn.

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show abstract

“…Two solutions have been proposed by the IEEE802.15.3a. The first proposal is the multiband orthogonal frequency division multiplexing (MBOFDM) UWB and the second represents the direct sequence code division multiple access (DS_CDMA) UWB [16][17][18][19][20][21][22][23][24][25]. The first generation UWB system uses a low-frequency band of 3.5 to 5.1 GHz in its required approach.…”

Section: Introductionmentioning

confidence: 99%

A two-stage power amplifier design for ultra-wideband applications

Al-Kofahi

Albataineh

Dagamseh

2021

IJECE

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In this paper, a two-stage 0.18 μm CMOS power amplifier (PA) for ultra-wideband (UWB) 3 to 5 GHz based on common source inductive degeneration with an auxiliary amplifier is proposed. In this proposal, an auxiliary amplifier is used to place the 2nd harmonic in the core amplified in order to make up for the gain progression phenomena at the main amplifier output node. Simulation results show a power gain of 16 dB with a gain flatness of 0.4 dB and an input 1 dB compression of about -5 dBm from 3 to 5 GHz using a 1.8 V power supply consuming 25 mW. Power added efficiency (PAE) of around 47% at 4 GHz with 50 Ω load impedance was also observed.

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“…Purposed design procedure is applicable for other kinds of PAs. Purposed procedure can result in an ultimate low voltage and relatively high efficiency circuit in comparison with already purposed PAs (Wang R. L., Su Y. K., & Liu C. H., 2006;Lu C., Pham A., & Shaw M. 2006;Hsu H. C., Wang Z. W., & Ma G. K., 2005).…”

Section: Introductionmentioning

confidence: 99%

Systematic Approach for Designing Ultra Wide Band Power Amplifier

Rezazadeh¹,

Amiri²,

Kondori³

2012

MAS

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In this work a systematic approach is presented for an allover design of full band UWB power amplifier. Purposed approach is included in three main steps, which are CMOS amplifier core stage bias design, input matching network and output matching network design, respectively. The first step starts by considering a cascode stage which can obtain power consumption and gain conditions through mentioned equations. Second and third stages are done through designing wide band LC networks for obtaining bandwidth requirements of UWB. For show performance of presented approach, we have designed a UWB PA through these steps. Simulation results show the performance of this design procedure.

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3~5 GHz Cascoded UWB Power Amplifier

Cited by 22 publications

References 6 publications

Concurrent Dual-Band Modeling and Digital Predistortion in the Presence of Unfilterable Harmonic Signal Interference

Concurrent Dual-Band Modeling and Digital Predistortion in the Presence of Unfilterable Harmonic Signal Interference

A two-stage power amplifier design for ultra-wideband applications

Systematic Approach for Designing Ultra Wide Band Power Amplifier

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