Broadband matching network design with sloped response for microwave GaAs f.e.t. amplifiers

1979 ◽  
Vol 3 (3) ◽  
pp. 97 ◽  
Author(s):  
Tri T. Ha
Frequenz ◽  
2017 ◽  
Vol 71 (5-6) ◽  
Author(s):  
Metin Şengül

AbstractIn this paper, a new broadband matching network design approach based on reflection modeling is proposed, which has two parts: impedance data generation and modeling. In the approach, firstly the output impedance data of the matching network is obtained to get the desired flat transducer power gain in the passband. Next the output reflection data are calculated using the obtained impedance data, then they are modeled as a bounded real function. Then this function is synthesized and the desired lossless matching network with initial element values is obtained. A double matching example is solved to illustrate the use of the proposed approach. It is seen that proposed approach provides suitable initials for CAD tools for final trimming.


2021 ◽  
Author(s):  
Jinkai Li ◽  
Xiaoxi Zhang ◽  
Yaoxu Lei ◽  
Huiqing Zhai ◽  
Changyuan Liu

2014 ◽  
Vol 6 (6) ◽  
pp. 555-564 ◽  
Author(s):  
Ramazan Köprü ◽  
Sedat Kilinç ◽  
Çağatay Aydin ◽  
Doğu Çağdaş Atilla ◽  
Cahit Karakuş ◽  
...  

In this paper, design, manufacture, and measurement of a wideband matching network for a broadband V-shaped square planar monopole antenna (V-SPMA) is presented. Matching network design is unavoidable in most cases even vital to facilitate a maximally flat power transfer gain for an antenna. In the work, a bandpass matching network (BPMN) design is done for a particular square monopole antenna with V-shaped coupling element that has essentially bandwidth increasing effect. Designed BPMN and the antenna forms a VSPMA–BPMN matched antenna structure. “real frequency technique” is employed in the BPMN design. BPMN prototype circuit has been constructed on an FR4 laminate with commercial microwave chip inductors and capacitors. Vector network analyzer gain and reflectance measurements of the matched antenna structure have shown highly compatible results to those of the theoretical design simulations along the passband (~0.8–4.7 GHz). Furthermore, newly proposed distributed capacitor–resistor lossy model for microstrip lines used in the BPMN circuit have exhibited that it can successfully mimic the measured gain and reflectance performance of the matched structure in passband and even in stopband upto 8 GHz. Designed structure can be utilized as a one single wideband broadcasting medium suitable for many communication standards such as GSM, 3G, and Wi-Fi.


2016 ◽  
Vol 63 (7) ◽  
pp. 658-662 ◽  
Author(s):  
Apsara Ravish Suvarna ◽  
Venumadhav Bhagavatula ◽  
Jacques C. Rudell

2021 ◽  
Vol 24 (10) ◽  
pp. 888-897
Author(s):  
Jaehong Lee ◽  
Junghyeon Roh ◽  
Hyung-Woo Lee ◽  
Hyeong-Seok Oh ◽  
Seung-Hwan Lee

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