We report on what is believed to be the first example of an ultrawide, bandpass filter, based on a high-contrast multicomponent one-dimensional Si photonic crystal (PC). The effect of the disappearance of a limited number of flat stopbands and their replacement with extended passbands is demonstrated over a wide IR range. The passbands obtained exhibit a high transmission of 92% to 96% and a su...

Design of a novel triband bandpass filter is presented for wireless communications systems. The based on inter-coupled stepped impedance resonators and inter-digitally coupled to the input/output ports. configuration circuit consists open-loop that are electromagnetically each other using inverted T-shaped open stubs. intrinsic characteristics structure generates five transmission zeros results...

A new compact microstrip bandpass filter design is introduced in this paper as a candidate for use in modern wireless communication systems. The proposed filter structure is composed of two fractal-based microstrip resonators. The structure of each resonator is in the form of the Hilbert fractal curve geometry. Two microstrip single-mode resonators with structures based on the 3rd and 4th itera...

A novel ultra-wideband (UWB) bandpass filter (BPF) with notched band based on microstrip/slotline ring resonators is presented in this paper. The UWB BPF is fabricated with two microstrip ring resonators on the top copper layer and a slotline ring resonator on the bottom ground layer. Thus, an ultra-wide passband can be achieved owing to the coupling effects and microstrip/slotline transitions ...

Systems with simultaneously operating transmitters and receivers require an excellent isolation between receive and transmit paths for preventing the transmit signal to cause saturation and intermodulation distortion in the sensitive receiver part. Furthermore, masking of the receive signal by spectral transmit signal components falling into the receive band has to be avoided. In case that freq...

---------------------------------------------------------------------------------------------------------------------------------------------Abstract: -In this paper, a compact ultra wideband (UWB) bandpass filter (BPF) with a passband covering 4.73 GHz to 10.43GHz with a bandwidth of 5.7 GHz and a fractional bandwidth of 75.2% is proposed. The filter has three transmission poles in the passban...