A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis

2021 ◽  
Vol 22 (9) ◽  
pp. 1260-1269
Author(s):  
Yang Gao ◽  
Fan Zhang ◽  
Yingying Qiao ◽  
Jiawei Zang ◽  
Lei Li ◽  
...  
Keyword(s):  
Matrix Synthesis ◽  
Coupling Matrix ◽  
Microstrip Filter

scholarly journals Coupling matrix synthesis of general chebyshev filters

2020 ◽  
Vol 309 ◽  
pp. 01011
Author(s):  
Lihua Qi ◽  
Dongqiu Xing ◽  
Rui Wang ◽  
Xinshe Qi ◽  
Jing Zhao
Keyword(s):  
Global Minimum ◽  
Microwave Filters ◽  
Hybrid Optimization ◽  
Final Solution ◽  
Matrix Synthesis ◽  
Excellent Performance ◽  
Coupling Matrix ◽  
Hybrid Optimization Algorithms ◽  
Chebyshev Filters ◽  
The Cost

A single optimization algorithm based on SolvOpt that synthesizes coupling matrices for cross-coupled microwave filters is presented. The rules for setting initial values of SolvOpt are proposed to find global minimum of the cost function. SolvOpt method provides faster convergence and higher accuracy to find the final solution compared with hybrid optimization algorithms. Application examples illustrate the excellent performance and the validity of this method.

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