A new design strategy for multi frequencies passive matching networks

Giofrè, Rocco; Colantonio, Paolo; Giannini, F.; Piazzon, Luca

doi:10.1109/eumc.2007.4405323

Cited by 32 publications

(21 citation statements)

References 8 publications

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“…The harmonics loads were synthesised with the network shown in Fig. 5, adopting the impedance buffer methodology [9]. Starting from left to right of this network, the first cell, composed by the series TL and the shunt open stub, actualises the desired load conditions at 3f 0 , while the second cell realises the load at 2f 0 .…”

Section: The Proposed Harmonic Traps Solutionmentioning

confidence: 99%

GaN Doherty Amplifier With Compact Harmonic Traps

Colantonio

Giannini

Giofrè

et al. 2008

2008 38th European Microwave Conference

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In this contribution, the design of an uneven AB-C Doherty power amplifier (DPA) in GaN technology, implementing a new approach to control the higher device harmonics, is presented. The DPA was designed to operate at 2.14GHz and with the aim to reduce as much as possible the chip size, without losing the Doherty operating principle. The measurement results in CW conditions at 2.14GHz had shown average drain efficiency higher than 55% at 6dB of back-off, with a saturated output power of 37dBm.

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Section: The Proposed Harmonic Traps Solutionmentioning

confidence: 99%

GaN Doherty Amplifier With Compact Harmonic Traps

Colantonio

Giannini

Giofrè

et al. 2008

2008 38th European Microwave Conference

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“…In this paper, the methodology to design a multifrequency passive network presented in [23] is further detailed and generalized. The proposed technique, based on closed-form and recursive relationships, allows a direct computer-aided design (CAD) synthesis for a theoretically unlimited number of uncorrelated frequencies.…”

Section: Introductionmentioning

confidence: 99%

A Design Technique for Concurrent Dual-Band Harmonic Tuned Power Amplifier

Colantonio

Giannini

Giofrè

et al. 2008

IEEE Trans. Microwave Theory Techn.

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123

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In this paper, a novel technique to design concurrent dual-band high-efficiency harmonic tuned (HT) power amplifiers (PAs) is presented. The proposed approach is based on a methodology developed to design multifrequency passive matching networks, which allows concurrent operability. The network design criterion is heavily investigated and later generalized both from the theoretical and practical point of view. The design, realization, and the complete characterization of a concurrent dual-band high-efficiency HT PA is finally described. A 1-mm gate periphery GaN HEMT device was used for the design and realization of the PA operating concurrently at 2.45 and 3.3 GHz. The measurement results have shown 53% and 46% drain efficiency at 33-and 32.5-dBm output power in the two targeted bands if operated in continuous wave single mode. In concurrent mode, 35% average efficiency was achieved with two simultaneously applied orthogonal frequencydivision multiplexing signals.Index Terms-Dual band, harmonic matching, high efficiency, impedance buffer (IB), power amplifier (PA).

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“…Multiple MNs interconnected with switches [1], tunable capacitors [2], or coupled with lumped or distributed frequency-selective resonators can be used [3]. Also, networks consist of multiple cells, which are designed recursively have been reported [4,5]. Even though such circuits are easy to design and implement, their sizes and losses scale with the number of bands.…”

Section: Introductionmentioning

confidence: 99%

An Optimization-Based Design Technique for Multi-Band Power Amplifiers

Arabi¹,

Bagot²,

Smida³

et al. 2018

PIER C

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Abstract-Matching networks for dual-band power amplifiers typically rely on complex, non-general techniques, which either use switches or result in large and lossy matching networks. In this work, mathematical optimization is employed to design the matching networks for multi-band power amplifiers. The theory of continuous modes is utilized together with accurate models for the device package to define the required impedance terminations theoretically thus allowing mathematical optimization to be used for the design. This technique depends on neither the network architecture nor the number of frequency bands. Therefore, simple and compact multi-band matching networks can be achieved. As proof of concept, a triple-band amplifier at 0.8, 1.8, and 2.4 GHz has been designed using the proposed method. The fabricated amplifier demonstrates maximum power added efficiencies of 70%, 60%, and 58% and output powers of 40 dBm, 41 dBm and 40 dBm for the three frequency bands, respectively. The presented design approach is highly suitable for the next generation of wireless systems.

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A new design strategy for multi frequencies passive matching networks

Cited by 32 publications

References 8 publications

GaN Doherty Amplifier With Compact Harmonic Traps

GaN Doherty Amplifier With Compact Harmonic Traps

A Design Technique for Concurrent Dual-Band Harmonic Tuned Power Amplifier

An Optimization-Based Design Technique for Multi-Band Power Amplifiers

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