High-Efficiency Low Voltage Inverse Class-F Power Amplifier Design Based on Harmonic Control Network Analysis

2020 ◽  
Vol 67 (3) ◽  
pp. 806-814 ◽  
Author(s):  
Milad Ekhteraei ◽  
Mohsen Hayati ◽  
Farzin Shama
Frequenz ◽  
2020 ◽  
Vol 74 (3-4) ◽  
pp. 145-152
Author(s):  
Ali Pirasteh ◽  
Saeed Roshani ◽  
Sobhan Roshani

AbstractIn this paper, a new method to decrease the dimensions of the microstrip structures and reducing the overall size of the class F amplifiers is presented. First, by using the PHEMT transistor with a conventional harmonic control circuit (HCC), a low-voltage class F amplifier in the L band frequency at the operating frequency of 1.75 GHz is introduced, which named primitive class F power amplifier. Then, this amplifier is optimized by using capacitor loaded transmission lines (CLTLs). The measurement results of the amplifier show that by using the CLTL structure, the overall size has been reduced 85% (0.23 λg × 0.17 λg). The maximum power-added efficiency (PAE) of the power amplifier is about 77.5 % and the power gain which has been reached to 18.33 dB. The desirable features of this power amplifier, along with its very small size, make this power amplifier a good choice to use for the global system for mobile communications.


2012 ◽  
Vol 54 (3) ◽  
pp. 707-711 ◽  
Author(s):  
Yao Ding ◽  
Yong-Xin Guo ◽  
Fa-Lin Liu ◽  
Lan You

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 51864-51874 ◽  
Author(s):  
Zhenxing Yang ◽  
Yao Yao ◽  
Mingyu Li ◽  
Yi Jin ◽  
Tian Li ◽  
...  

Author(s):  
Wen Shi ◽  
Songbai He ◽  
Weimin Shi ◽  
Ce Shen ◽  
Chuan Li ◽  
...  

2011 ◽  
Vol 3 (6) ◽  
pp. 621-625
Author(s):  
Shilei Jin ◽  
Jianyi Zhou ◽  
Lei Zhang

In this article, the development of a high-efficiency power amplifier (PA) with the inverse class-F configuration and a novel 3/4 spiral defected ground structure (DGS) is presented. The proposed DGS structure has improved rejection characteristic and its resonance frequencies are more convenient to adjust than conventional symmetric and asymmetric spiral structure. The electromagnetic-simulated result shows that the proposed circuit has improved harmonic control performance with simplified structure and less return loss than the conventional microstrip harmonic control circuit. The 3/4 spiral harmonics control circuit (HCC) can be modeled by three parallel RLC resonators. Using the proposed structure a high-performance harmonic control circuit is designed for implementing an inverse class-F PA. For comparison, two inverse class-F PAs operating at 2.4 GHz have been implemented by the microstrip HCC and the proposed HCC, respectively. According to the experiment results, the size of the proposed inverse class-F PA is reduced by 20%, the power-added efficiency and the gain are increased by 4.8% and 1.5 dB, respectively.


2020 ◽  
Vol 9 (5) ◽  
pp. 1924-1932
Author(s):  
Md. Golam Sadeque ◽  
Zubaida Yusoff ◽  
Mardeni Roslee

The fourth-generation (4G) wireless communication has been deployed in many countries. However, there are still some problems such as spectrum crisis due to the increase of wireless mobile devices and servicing. Therefore, the fifth-generation (5G) communication system will be employed at some different spectrum other than 4G frequency band. The radio frequency power amplifier (RFPA) is the key component of the 5G system. In this paper, a broadband continuous class-F (CCF) RFPA is designed for the 5G frequency band from 3.3-4.3 GHz. The input and output matching network are designed using the simplified real frequency technique (SRFT). Using a 10W GaN CGH40010F Cree device, the efficiency of the RFPA achieved greater than 70.7% for the whole frequency band with a maximum of 81.5%. The output power and the gain are more than 40 dBm and 10 dB respectively


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