Integrated filter–amplifiers: A comprehensive review

Y Gao, X Shang, L Li, C Guo… - IEEE Microwave …, 2022‏ - ieeexplore.ieee.org
Amplifiers and filters are essential components in microwave systems. An amplifier is used
to increase the signal strength, and it is usually cascaded by filters for frequency selection or …

Bandpass class-F power amplifier based on multifunction hybrid cavity–microstrip filter

QY Guo, XY Zhang, JX Xu, YC Li… - IEEE Transactions on …, 2016‏ - ieeexplore.ieee.org
This brief presents a filter-integrated high-efficiency class-F power amplifier (PA). The hybrid
cavity-microstrip filtering circuit is employed not only to realize output impedance matching …

[HTML][HTML] Design of highly efficient filtering power amplifier with a wideband response for sub-6 GHz 5G applications

M Boumalkha, M Lahsaini, MEH Archidi… - Results in …, 2024‏ - Elsevier
This paper presents the design of a filtering power amplifier (PA) with extra-high power-
efficiency and wide bandwidth. To accomplish this, a novel approach is adopted by utilizing …

Bandpass-filtering power amplifier with compact size and wideband harmonic suppression

T Feng, K Ma, Y Wang, J Hu - IEEE Transactions on Microwave …, 2021‏ - ieeexplore.ieee.org
This article proposed a codesign of a power amplifier (PA) and a bandpass filter (BPF)
named filtering PA using metal integrated and substrate integrated suspended line (MI …

Vertical Integration of High- Filter With Circularly Polarized Patch Antenna With Enhanced Impedance-Axial Ratio Bandwidth

T Li, X Gong - IEEE Transactions on Microwave Theory and …, 2018‏ - ieeexplore.ieee.org
Directly coupling antennas to filters can remove the transition loss between the two and
reduce the size of radio frequency front ends. Circularly polarized (CP) patch antennas with …

High-efficiency dual-band filtering Doherty power amplifier based on multi-function circuit

H Chen, JX Xu, W Chen… - IEEE Transactions on …, 2022‏ - ieeexplore.ieee.org
This article presents a high-efficiency dual-band filtering Doherty power amplifier (DPA)
using multi-function circuits for simplifying the structure. A dual-band filtering power …

Bandpass filtering Doherty power amplifier with enhanced efficiency and wideband harmonic suppression

SY Zheng, ZW Liu, YM Pan, Y Wu… - IEEE Transactions on …, 2016‏ - ieeexplore.ieee.org
There is an ever increasing demand for both function integration and improved performance
in wireless communication devices. Therefore, the integration of efficient linearizing …

Codesign of high-efficiency power amplifier and ring-resonator filter based on a series of continuous modes and even–odd-mode analysis

J Wang, S He, F You, W Shi, J Peng… - IEEE Transactions on …, 2018‏ - ieeexplore.ieee.org
A method enabling the codesign of a high-efficiency power amplifier (PA) and a ring-
resonator microstrip bandpass filter is proposed in this paper. Even-odd-mode analysis and …

Compact tunable filtering power divider with constant absolute bandwidth

L Gao, XY Zhang, Q Xue - IEEE Transactions on Microwave …, 2015‏ - ieeexplore.ieee.org
This paper presents a novel frequency-agile filtering power divider with constant absolute
bandwidth and high selectivity. The proposed design utilizes four coupled resonators to …

Dual-channel dielectric resonator filter and its application to Doherty power amplifier for 5G massive MIMO system

JX Xu, XY Zhang - IEEE transactions on microwave theory and …, 2018‏ - ieeexplore.ieee.org
In this paper, a dual-channel dielectric resonator (DR) filter is presented for the first time.
Two bandpass filters (BPFs) are integrated as one dual-channel filter with two input ports …