Codesign of High-Efficiency Power Amplifier and Ring-Resonator Filter Based on a Series of Continuous Modes and Even–Odd-Mode Analysis

Wang, Jinchen; He, Songbai; You, Fei; Shi, Weimin; Peng, Jun; Li, Chuan

doi:10.1109/tmtt.2018.2819650

Cited by 42 publications

(23 citation statements)

References 28 publications

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“…In [8], a broadband continuous inverse Class-F (CCF −1 ) is presented using a modified elliptic low-pass filtering matching network. In [9], a ring-resonator filter is used to achieve broadband impedance matching, where transmission zeros (TZs) can be introduced to suppress the second harmonic. The real frequency technique with finite transmission zeros is also extensively studied to realize a broadband CCF PA [10].…”

Section: Introductionmentioning

confidence: 99%

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Chen

Kong

et al. 2020

IEEE Access

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This paper presents a broadband high-efficiency harmonic-tuned power amplifier (PA) with quasi-elliptic low-pass responses. A combination of continuous Class-F −1 and extended continuous Class-F PA modes is employed to significantly expand the design space. A quasi-elliptic low-pass matching network is proposed, which can realize a broadband impedance matching in the predefined optimal impedance region desired by the combination of PA modes. Furthermore, two transmission zeros are generated near the passband, exhibiting high skirt selectivity and providing rapid impedance transition from the passband to the stopband. A wide stopband covering up to the third harmonic is achieved which shows good harmonic suppression. Design procedures of the proposed broadband PA are presented. To verify the proposed methodology, the broadband PA is fabricated and measured. The implemented PA achieves a bandwidth of 145.2% from 0.5 to 3.15 GHz. Over this frequency range, the drain efficiency is measured as 58-74.9% with the output power of greater than 39.03 dBm and a large signal gain ranging from 8.43 to 15.67 dB. A wide stopband is realized from 3.4 to 10 GHz, showing excellent quasi-elliptic low-pass responses. The measured adjacent leakage ratios (ACLRs) using a 20-MHz LTE signal with digital pre-distortion are below −45.06 dBc. INDEX TERMS Broadband power amplifier, filter-integrated power amplifier, harmonic suppression, high efficiency, quasi-elliptic low-pass matching network.

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Section: Introductionmentioning

confidence: 99%

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Chen

Kong

et al. 2020

IEEE Access

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“…Reference [10] discusses a high-efficiency asymmetric class-F/F −1 DPA, which consists of a class-F −1 carrier amplifier and a class-F peak amplifier. In [11], a wideband PA is designed, whose output matching network is composed of 16 identical branch structures loaded on the ring resonator.…”

Section: Introductionmentioning

confidence: 99%

Filtering Power Amplifier With Up to 4^th Harmonic Suppression

Xiao

2020

IEEE Access

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Unlike conventional conception that power amplifier and filter are regarded as two separate components and designed separately, this paper presents a high efficiency power amplifier with filtering capability, which is called filtering power amplifier. The proposed power amplifier integrates a bandpass filter as output matching network so that entire size is reduced to some extent. The filter will play the role of filtering and impedance matching simultaneously, and thus high-order harmonics are suppressed for output of the filtering power amplifier. For demonstration, an example of filtering power amplifier was designed, fabricated and measured. The measurement shows that it is featured by highly-selective bandpass response and good out-of-band performance. As high as 46.2 dB suppression can be achieved and extended over the forth-order harmonic. The example also retains the advantages of high efficiency and output power. The maximum output power can reach 40.5 dBm, and the maximum power-added efficiency is as high as 62%.

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“…Despite many broadband continuous mode PAs have been reported, 3‐6 the output matching network design for broadband continuous mode operation is challenging as specific impedance requirements are enforced to guarantee the performance. The existing designs mainly rely on load‐pull measurement and mostly are implemented with microstrip lines or filter‐based matching networks 7‐9 . Those discrete circuit design approaches deal with the characteristic impedance transmission lines, and have limited integration potential.…”

Section: Introductionmentioning

confidence: 99%

“…The existing designs mainly rely on load-pull measurement and mostly are implemented with microstrip lines or filter-based matching networks. [7][8][9] Those discrete circuit design approaches deal with the characteristic impedance transmission lines, and have limited integration potential.…”

Section: Introductionmentioning

confidence: 99%

LC resonant circuits based matching networks for continuous mode MMIC power amplifiers

Zhu

2020

Micro & Optical Tech Letters

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This article presents a practical design methodology to construct output matching networks for broadband continuous mode monolithic microwave integrated circuit (MMIC) power amplifiers (PAs). Unlike conventional harmonic manipulation approaches, combinations of parallel and series LC resonant circuits are utilized to build the matching networks as it can generate frequencydependent components and locate the varying impedance of continuous mode. With a proper design, the impedance variation in frequency domain can be mapped to the frequency response of the matching network at the fundamental frequency and the second harmonic simultaneously. Matching network design procedures are demonstrated and results show that the frequency response of the network has very good approximation with the desired continuous mode conditions. A prototype PA is implemented on 0.25-μm gallium nitride (GaN) MMIC process, and tested with both continuous-wave and modulated signals. Measurement results show 50.82% maximum drain efficiency and 8.5 dB gain can be achieved across the operation bandwidth of 5.4 to 6.4 GHz.

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Codesign of High-Efficiency Power Amplifier and Ring-Resonator Filter Based on a Series of Continuous Modes and Even–Odd-Mode Analysis

Cited by 42 publications

References 28 publications

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Filtering Power Amplifier With Up to 4^th Harmonic Suppression

LC resonant circuits based matching networks for continuous mode MMIC power amplifiers

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Codesign of High-Efficiency Power Amplifier and Ring-Resonator Filter Based on a Series of Continuous Modes and Even–Odd-Mode Analysis

Cited by 42 publications

References 28 publications

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Broadband High-Efficiency Power Amplifier With Quasi-Elliptic Low-Pass Response

Filtering Power Amplifier With Up to 4th Harmonic Suppression

LC resonant circuits based matching networks for continuous mode MMIC power amplifiers

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Product

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Filtering Power Amplifier With Up to 4^th Harmonic Suppression