基带采样理论概述 The sampling of bandpass signals is discussed with respect to band position noise considerations, and parameter sensitivity. For first-order sampling, the acceptable and unacceptable sample rates are presented, with the practical rates whic
A wideband tunable optoelectronic oscillator (OEO) based on a tunable single-bandpass microwave photonic filter (MPF) and a recirculating delay line is proposed and experimentally demonstrated. The MPF is formed by cascading a finite impulse response
An interdigital microstrip coupled-line bandpass filter is proposed for millimetre-wave application. A quadruple-mode microstrip-line resonator is designed to constitute the passband. The interdigital coupled-line sections are designed as the input/o
An ultra-wideband (UWB) bandpass filter (BPF) using the hybrid microstrip and coplanar waveguide (CPW) structure is proposed in this article.The BPF composes of CPW feed lines and H-shaped microstrip resonator. By a CPW/microstrip back-to-back coupli
A bandpass filter with twin wideband channels in a single-layer guided-mode resonance grating is presented. Strong refractive-index modulation is used to support the excitation of multimode resonances TE1,0, TE1,1, TE2,0, TE1,2, and TE2,1, which are
