Search results for: Jiangqiao Ding

Items from 1 to 6 out of 6 results

article

A 90° Waveguide Hybrid with Low Amplitude Imbalance in Full W-Band

Jiangqiao Ding, Yun Zhao, Jun-Xiang Ge, Shengcai Shi

Journal of Infrared, Millimeter, and Terahertz Waves > 2019 > 40 > 4 > 429-434

This paper reports a high-performance 90° waveguide hybrid coupler working in the full W-band. We demonstrate an 8-branch hybrid which features the low amplitude imbalance over a wide band by first increasing the waveguide height inwards and second introducing waveguide height discontinuity sections on the other inner side. Such a compact and robust waveguide hybrid coupler can be implemented in a...

article

High Efficiency and Wideband 300 GHz Frequency Doubler Based on Six Schottky Diodes

Jiangqiao Ding, Alain Maestrini, Lina Gatilova, Antonella Cavanna, more

Journal of Infrared, Millimeter, and Terahertz Waves > 2017 > 38 > 11 > 1331-1341

A high efficiency and wideband 300 GHz frequency doubler based on six Schottky diodes is presented in this paper. This balanced doubler features a compact and robust circuit on a 5-μm-thick, 0.36-mm-wide, and 1-mm-long GaAs membrane, fabricated by LERMA-C2N Schottky process. The conversion efficiency is mainly better than 16% across the wide bandwidth of 266–336 GHz (3 dB fractional bandwidth of 24%)...

article

A 240-GHz Wideband Ridged Waveguide Filter Based on MEMS Process

Jiangqiao Ding, Jie Hu, Dong Liu, Daowei Wang, more

Journal of Infrared, Millimeter, and Terahertz Waves > 2017 > 38 > 3 > 283-291

Terahertz (THz) bandpass filter (BPF) is one of important components in some detectors for astronomical observations. In this paper, a BPF with a relative bandwidth of 50% centered at 240 GHz is presented. This wideband BPF is made up of six ridged waveguide resonators and developed by silicon-based micro-electro-mechanical systems (MEMS) process. The transmission response of the filter is measured...

article

W-band quasi-elliptical waveguide filter with cross-coupling and source–load coupling

Jiangqiao Ding, Dong Liu, Shengcai Shi, Wen Wu

Electronics Letters > 2016 > 52 > 23 > 1960 - 1961

A high-performance waveguide bandpass filter operating at W-band is presented. This folded fourth-order filter with quasi-elliptic response is developed by introducing cross-coupling and source–load coupling, while maintaining a compact construction for simple computer numerical control (CNC) milling process. The filter fabricated within aluminium block shows an insertion loss of about 1.2 dB in a...

chapter

Cavity bandpass filters with quasi-elliptic response at 220GHz

Jiangqiao Ding, Shengcai Shi, Wen Wu

2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT) > 2 > 940 - 942

2016 IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Terahertz detectors for astronomical observations such as continuum radiation are required to have a well-defined bandpass, which is typically about 10% of the detector's center frequency. Two cavity bandpass filters with quasi-elliptic response at 220 GHz are therefore analyzed in this paper. A dual-mode cavity bandpass filter is firstly analyzed, showing a limited relative bandwidth of 5.7%. To...

chapter

Terahertz propagation and radiation characteristics of metal plate with periodic grooves

Jiangqiao Ding, Shengcai Shi, Wen Wu

2015 Asia-Pacific Microwave Conference (APMC) > 2 > 1 - 3

2015 Asia-Pacific Microwave Conference (APMC)

This paper demonstrates propagation and radiation properties of a metal plate with periodically grooves structures in the terahertz regime. These characteristics are analyzed by grating equation and simulated at 350 GHz. The metal plate with different periodic grooves has great potential for THz surface wave propagation, beam enhancing and multi-direction radiation.

Filter options

Publication date

Set your own date range

INFONA - science communication portal

Search results for: Jiangqiao Ding

A 90° Waveguide Hybrid with Low Amplitude Imbalance in Full W-Band

High Efficiency and Wideband 300 GHz Frequency Doubler Based on Six Schottky Diodes

A 240-GHz Wideband Ridged Waveguide Filter Based on MEMS Process

W-band quasi-elliptical waveguide filter with cross-coupling and source–load coupling

Cavity bandpass filters with quasi-elliptic response at 220GHz

Terahertz propagation and radiation characteristics of metal plate with periodic grooves

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Publication type

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options