Figure 4 Measured frequency response of the improved double-layer slot-coupled directional coupler measurements. It was deduced that the measured losses and ripples are caused mainly by the resonance effect of the slot. REFERENCES 1. T. Tanaka, K. Tsunoda, and M. Aikawa, Slot-coupled directional cou
โฆ LIBER โฆ
Realization and location control of attenuation poles by bandpass filters using mixed resonators
โ Scribed by Kouji Wada; Takanobu Ohno; Osamu Hashimoto
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 710 KB
- Volume
- 151
- Category
- Article
- ISSN
- 0424-7760
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## Abstract This paper describes the design of a narrow bandpass filter with attenuation poles used at high frequencies. The filter circuit is new and consists of coupled lines and resonators. This paper analyzes how the filter characteristics vary with these circuit parameters. A bandpass filter d