Implementation of Compact UWB Bandpass Filter With a Notch-Band
作者： Sai Wai Wong , Lei Zhu
关键词: Electronic engineering 、 Microstrip 、 Ultra-wideband 、 Engineering 、 Transmission line 、 Passband 、 Harmonic 、 Filter (video) 、 Resonator 、 Optics 、 Band-pass filter
摘要: An ultra-wideband (UWB) bandpass filter on microstrip line with notch-band, compact-size and improved upper-stopband performances is presented implemented. A modified non-uniform resonator at first formed by transversely attaching three pairs of impedance-stepped stubs. Its resonance behavior thoroughly characterized so as to allocate the resonant frequencies within 3.1-10.6 GHz band while suppressing spurious harmonics in upper-band. As this linked two sides feed lines via interdigital coupled enhanced coupling degree, a preferred UWB passband realized. Then, one arms coupled-line sections largely extended folded, aiming create notch frequency 5.6 virtue out-of-phase transmission cancellation. Two prototypes are optimized fabricated demonstrate notch-band-included upper-stopband-improved performances.
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