Esa, Mazlina (2008) Single-stage parallel coupled microstrip line bandpass filter using weak coupling technique. In: IEEE International RF and Microwave Conference (RFM 2008), 2008, Kuala Lumpur.
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Official URL: http://dx.doi.org/10.4028/10.1109/RFM.2008.4897457
The frequency-dispersive characteristic of a two-port parallel coupled microstrip line (PCML) can be obtained using equivalent J-inverter network parameters. The latter is obtained from its corresponding admittance parameters. Hence, the behaviour of transmission zero frequency, fundamental response frequency and harmonic response frequency of the PCML can be shown. The former is realigned by varying a centrally located single groove size to suppress the first spurious harmonic passband of the filter. Using the J-inverter parameters, the transmission zero of J-susceptance null of a PCML can be realigned by employing a single groove with specific dimension. This simultaneously cancels the first harmonic resonance. In this paper, the behaviour of the J-inverter parameters with varying coupling gaps is presented. The effect of having weak coupling characteristic is then presented. The proposed technique is then justified by two single-stage bandpass filters of PCML with weak coupling characteristic.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||bandpass filter, J—inverter network, harmonic suppression, transmission zero, two port admittance network|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Deposited By:||Liza Porijo|
|Deposited On:||07 Feb 2017 06:49|
|Last Modified:||07 Feb 2017 06:49|
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