Shouxian Mou

De-embedding and modeling of spiral inductor based on substrate integrated suspended line technology

This paper proposes a spiral inductor based on substrate integrated suspended line (SISL) technology. Short-open de-embedding method is used for the parameter extraction, a physical model is established for SISL inductor. The measurement and simulation results confirm that the equivalent-circuit can accurately characterizes the behavior of the spiral inductor.

A High Performance Tandem Coupler Using Substrate Integrated Suspended Line Technology

In this letter, a tandem coupler with high performance using substrate integrated suspended line (SISL) technology is proposed. Two weekly coupled single-section coupled lines are cascaded to form the 3 dB tandem coupler. With the compensation capacitors along the coupled lines, high directivity can be obtained. Using substrate integrated suspended line technology, the proposed tandem coupler has advantages of low loss, wide bandwidth, self-packaging, low cost, light weight and easy to fabricate on conventional printed circuit board process.

A compact self-packaged lumped-element coupler using substrate integrated suspended line technology

This paper proposes a new compact self-packaged lumped-element coupler using substrate integrated suspended line (SISL) technology. The proposed SISL lumped coupler is implemented by using multilayer printed circuit boards (PCBs), transitions from SISL to conductor backed coplanar waveguide (CBCPW) and a second-order lumped-element coupler topology. The fabricated coupler has a compact size of 0.025λg×0.11λg, a measured broad bandwidth of 33.3% at the center frequency of 1.18 GHz. Moreover, with the benefit of SISL technology, the proposed SISL lumped coupler is self-packaged and features low cost and light weight.

A Novel Transition From Substrate Integrated Suspended Line to Conductor Backed CPW

A novel transition from substrate integrated suspended line (SISL) to conductor backed coplanar waveguide (CBCPW) is proposed in this letter. The proposed transition utilizing the standard PCB techniques eliminates the drawbacks of the traditional suspended circuits and integrates the suspended circuits effectively. The new transition is a self-packaged system verified by both simulation and experiment results. Back-to-back transition structure has insertion loss of less than 0.6 dB and return loss of better than 15 dB from dc to 8 GHz.

A study of CMOS SOI for RF, Microwave and millimeter wave applications

With recent technique advancement, CMOS silicon-on-insulator (SOI) technology seems to be attractive for the implementation of the RF, Microwave and millimeter-wave circuits and systems due to its excellent feature of lower loss, lower noise and good power handling capabilities as compared to its CMOS counterpart. This paper is going to study the state of the art CMOS SOI processes and the applications of CMOS SOI in the RF and mm-wave front-end building blocks such as switch, LNA, PA etc. as well as the systems for commercial and noncommercial applications.

A low loss branch line coupler based on substrate integrated suspended line (SISL) technology and double-sided interconnected strip line (DSISL)

This paper proposes a low loss branch line coupler based on substrate integrated suspended line (SISL) technology and double-sided interconnected strip line (DSISL). Compared with conventional suspended line structure, the proposed SISL coupler has the advantages of self-packaging, compact size and low loss. DSISL is introduced in the design to further reduce the losses. A branch line SISL coupler has been designed and fabricated by printed circuit board technology. Simulation results and measurement results show great agreement.

Generalized multiple coupled tanks for silicon based RF/mm-wave IC (Invited)

Higher loss of commercial silicon substrate, which has the substrate resistivity of about 10Ω · Cm, is always a headache for the IC designer. We proposed a generalized multiple coupled tanks topology, which can reduce the substrate loss and enhance the circuit performance. The general concept, analysis and circuit examples are presented in this paper for the demonstration and verification.

An ultra-wide stopband self-packaged quasi-lumped-element low pass filter based on substrate integrated suspended line technology

This paper presents an ultra-wide stopband self-packaged quasi-lumped-element low pass filter (LPF) based on substrate integrated suspended line (SISL) technology. Interdigital capacitor and spiral inductor are utilized in the 1GHz quasi-lumped-element LPF. The measured results show that the proposed LPF can achieve a wide stopband from 1.36yc to 8fc with 20dB stopband rejection. And the filter has advantages of self-packaging, low loss, compact size, and low cost by using SISL technology.

A self-packaged bandpass filter with controllable transmission zeros using Substrate Integrated Suspended Lines

A novel dual-mode circular patch resonator (DMCPR) is proposed to design a high characteristic bandpass filter (BPF) with controllable transmission zeros (TZs) based on Substrate Integrated Suspended Line (SISL) technology. The inherent degenerate modes of a circular patch adopted to achieve the DMCPR are separated and controlled by two embedded notches. Three TZs at upper and lower sidebands of the passband are introduced by the source to load coupling and can be adjusted by the separated electric and magnetic coupling (E/M) to improve the rolloff and rejection in stopbands. By making use of SISL, the implemented and fabricated 5.5GHz BPF, featured with self-packaging and low cost, achieves insertion loss (IL) of 1.44dB and fractional bandwidth (FBW) of 14.8% with compact size of 0.55λg×0.55λg (λg is the guided wavelength at 5.5GHz).

A controllable and low loss dual-band bandpass filter by using a simple ring resonator

A novel structure, which is built by using a simple ring resonator loading open stubs, is adopted to design a dual-band bandpass filter with low loss and controllable characteristics. The fractional bandwidths of two passbands and transmission zeros are controlled by adjusting the length of the loaded open stub and the distance of two feeders. Based on Substrate Integrated Suspended Line (SISL) platform, the filter is designed and implemented with self-packaging and low losses, which are only 0.45/0.83dB of two passbands. The measured results are well agreed with the simulated results.