Equivalent circuit for implemented lowpass filter with SRR metamaterial

2017 ◽  
Author(s):  
Sara Ghanem ◽  
A.M.M.A Allam ◽  
Raed M. Shubair
Keyword(s):  
Equivalent Circuit ◽  
Lowpass Filter

scholarly journals Dual-Band Bandpass Filter With Controllable Stopband Bandwidth

2022 ◽  
Vol 9 ◽  
Author(s):  
Nan Wang ◽  
Haokun Wei ◽  
Kun Gao ◽  
Xiting Ruan ◽  
Xiaojian Chen ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Bandpass Filter ◽  
Dual Band ◽  
Lowpass Filter ◽  
Microstrip Filter ◽  
Design Specifications ◽  
Transmission Zeros ◽  
Good Agreement

A novel dual-band bandpass filter (BPF) is proposed with independently controllable transmission zeros (TZs) which can realize widely tunable stopband bandwidth (BW). The planar microstrip filter consists of a three-degree L-C ladder lowpass filter loaded with two unsymmetrical shorted stubs which are used to produce different TZs. By tuning the parameters of the two unsymmetrical shorted stubs, the TZs can be independently controlled. Therefore, the BPF has independent controllable center frequencies (CFs), passband bandwidths, and stopband bandwidths between adjacent passbands. All the L-C values in the equivalent circuit of the proposed filter are optimized to fulfill the design specifications. For demonstration, a dual-band BPF is designed. The measured results show good agreement with the simulated ones.

Design of compact microstrip lowpass filter with ultra-wide stopband using modified T-shaped resonator

2014 ◽  
Vol 7 (6) ◽  
pp. 699-703 ◽  
Author(s):  
Behnam Afzali ◽  
Mohammad Mehdi Karkhanehchi ◽  
Gholamreza Karimi
Keyword(s):  
Transmission Line ◽  
Equivalent Circuit ◽  
Figure Of Merit ◽  
Band Width ◽  
Exact Equation ◽  
Lowpass Filter ◽  
Transmission Zero ◽  
Compact Size ◽  
High Figure ◽  
Lc Equivalent Circuit

A new microstrip lowpass filter with compact size and ultra-wide stopband using T-shaped resonator is proposed. To make smaller the circuit size of the filter, cursive transmission line is also suggested. Moreover, exact equation of most important transmission zero is calculated based on LC equivalent circuit and transformation function. A demonstration filter with 3 dB cut-off frequency at 1.02 has been designed, fabricated, and measured. Results show that a relative stopband band width of 166.3% (referred to suppression degree of 20 dB) is achieved while obtaining high figure of merit of 46 274.

Design of microstrip wide stopband lowpass filter with lumped equivalent circuit

2017 ◽  
Vol 53 (21) ◽  
pp. 1416-1418 ◽  
Author(s):  
A. Sheikhi ◽  
A. Alipour ◽  
H. Hemesi
Keyword(s):  
Equivalent Circuit ◽  
Lowpass Filter ◽  
Lumped Equivalent Circuit

Equivalent circuit for a GaAs CCD

1993 ◽  
Vol 140 (6) ◽  
pp. 377
Author(s):  
S. Pennathur ◽  
H.H.L. Kwok
Keyword(s):  
Equivalent Circuit

Linear Equivalent Circuit and Current Sources Model Including Separation Resistances in the Ground Connection for Multiple Power-Supply Pin LSI

2010 ◽  
Vol 130 (11) ◽  
pp. 1897-1906
Author(s):  
Yoshiyuki Saito ◽  
Masakatsu Yasuhara ◽  
Yuichi Mabuchi ◽  
Tohlu Matsushima ◽  
Takashi Hisakado ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Power Supply ◽  
Multiple Power
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