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| Study on the Thin-Film Resistor Influence on Microstrip Equalizer |
| Zhao Ying; Zhou Dong-fang; Zhang De-wei; Niu Zhong-xia |
| Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China |
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Abstract In order to make the microstrip equalizer matchs the given attenuation curve respectively ,it should be attenuation adjustable and quality factor adjustable besides frequency adjustable. So in this paper, the novel thin-film resistor loaded microstrip resonator and its application to microstrip equalizer are investigated through numerical simulations and experiments, and the influence of thin-film resistor for microstrip equalizer’s transmission and standing wave character is studied. The results showed that the microstrip equalizer can be frequency adjustable by changing the dimension of the microstrip reaonator and it can be attenuation adjustable and quality factor adjustable by changing the location and resistance of the loaded thin-film resistors. The High Frequency Structure Simulator (HFSS) was used to simulate this thin-film resistor loaded resonator. Simulation and experiment results show that this thin-film resistor loaded resonator is suitable to microstrip equalizer. Finally a microstrip equalizer composed of this thin-film resistor loaded resonator is designed, fabricated and good results are obtained in the experiment.
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Received: 24 April 2006
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2007, Vol. 29 
