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New Technique for Suppressing Spurious Responses of Planar Bandpass Filters Using ?/2 Resonators

Kouji Wada, Kouichi Nakagawa, Osamu Hashimoto

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Abstract

A method for suppressing spurious responses of planar bandpass filters (BPFs) using λ/2 resonators is proposed. We show that the spurious responses of the BPF can be suppressed by using the the resonator with the tap-connection technique and refer to the application examples of BPFs and coupled-line BPFs are provided. It has been confirmed that the resonator depending on the excitation method is useful for suppressing spurious responses of the planar BPF.

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What this paper is about

A method for suppressing spurious responses of planar bandpass filters (BPFs) using λ/2 resonators is proposed. We show that the spurious responses of the BPF can be suppressed by using the the resonator with the tap-connection technique and refer to the application examples of BPFs and coupled-line BPFs are provided. It has been confirmed that the resonator depending on the excitation method is useful for suppressing spurious responses of the planar BPF.

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Available abstract

A method for suppressing spurious responses of planar bandpass filters (BPFs) using λ/2 resonators is proposed. We show that the spurious responses of the BPF can be suppressed by using the the resonator with the tap-connection technique and refer to the application examples of BPFs and coupled-line BPFs are provided. It has been confirmed that the resonator depending on the excitation method is useful for suppressing spurious responses of the planar BPF.

Key concepts: Spurious relationship, Resonator, Band-pass filter, Planar, Materials science, Electronic engineering, Physics, Optoelectronics

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