【摘 要】
：
A novel single-cavity equilateral triangular substrate integrated waveguide (TSIW) bandpass filter (BPF) with a complementary triangular split ring resonator (CTSRR) is designed in this paper.A metallic via-hole is used to split the degenerate modes and a
【机 构】
：
Key Laboratory for Organic Electronics and Information Displays, Nanjing University of Posts and Tel
论文部分内容阅读
A novel single-cavity equilateral triangular substrate integrated waveguide (TSIW) bandpass filter (BPF) with a complementary triangular split ring resonator (CTSRR) is designed in this paper.A metallic via-hole is used to split the degenerate modes and adjust the transmission zeros (TZs) properly.Meanwhile,the CTSRR is utilized as a resonator to work together with the degenerate modes of the TSIW cavity.The resonant frequency of the CTSRR can be adjusted by its own size.Meanwhile,a TZ is observed in the lower band due to the CTSRR.Finally,a 16％ 3 dB fractional bandwidth (FBW) triple-mode TSIW BPF with three TZs in both lower and upper bands is simulated,fabricated,and measured.There is a good agreement between the simulated and measured ones.
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