40-GHz coplanar waveguide bandpass filters on silicon substrate

Miniaturization of superconducting coplanar waveguide bandpass filters by cross coupling

For more size reduction of the high temperature superconducting coplanar waveguide (CPW) bandpass filter (BPF), we introduce the design method of the meanderline CPW quarter-wavelength resonator BPF. The exact admittanceand susceptance-inverters are calculated by using the 2.5-dimensional electromagnetic field simulator. The prototype YBCO miniaturized BPF (center frequency =10GHz, n=3, band wi...

Compact Coplanar Waveguide Metamaterial-Inspired Lines and Its Use in Highly Selective and Tunable Bandpass Filters

31 GHz Ge n-i-p waveguide photodetectors on Silicon-on-Insulator substrate.

We report on evanescently coupled Ge waveguide photodetectors that are grown on top of Si rib waveguides. A Ge waveguide detector with a width of 7.4mum and length of 50 mum demonstrated an optical bandwidth of 31.3 GHz at -2V for 1550nm. In addition, a responsivity of 0.89 A/W at 1550 nm and dark current of 169 nA were measured from this detector at -2V. A higher responsivity of 1.16 A/W was a...

A Compact Wide Bandpass Filter based on Substrate Integrated Waveguide (SIW) Structure

In this pare, a wideband three-order bandpass filter (BPF) is proposed. The proposed wideband filter is designed using the substrate integrated waveguide (SIW) structure by loading T-shape slots. A BPF with two resonators is formed by etching T-shape slots with different size on the top metal plane of the SIW structure. The filter is investigated with the theory of coupled resonator circuits. T...

2 GHz Tuneable Integrated Differential Active Bandpass Filter on Silicon

Abstract — Improvements of Silicon technology in CMOS and BiCMOS process, is nowadays showing very interesting intrinsic characteristics. Circuit ideas and topologies are improved more and more to fit the industrial needs. Our design is a 2 GHz BiCMOS process filter based on a LC-Q enhanced topology. With a power supply of 2.7 V, the circuit consumes less than 6.1 mA. It shows at the centre fre...