Design and Characterization of 1.8-3.2 THz Schottky-Based Harmonic Mixers

被引：47

作者：

Bulcha, Berhanu T. ^{[1
]}

Hesler, Jeffrey L. ^{[1
]}

Drakinskiy, Vladimir ^{[2
]}

Stake, Jan ^{[2
]}

Valavanis, Alex ^{[3
]}

Dean, Paul ^{[3
]}

Li, Lianhe H. ^{[3
]}

Barker, N. Scott ^{[4
]}

机构：

[1] Virginia Diodes Inc, Charlottesville, VA 22903 USA

[2] Chalmers, Dept Microtechnol & Nanosci, S-41258 Gothenburg, Sweden

[3] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

[4] Univ Virginia, Dept Elect & Comp Engn, Charlottesville, VA 22904 USA

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2016年 / 6卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

Conversion loss; coupling efficiency; harmonic mixers; responsivity; Schottky diodes; terahertz (THz) circuits; WAVE;

D O I：

10.1109/TTHZ.2016.2576686

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A room-temperature Schottky diode-based WM-86 (WR-0.34) harmonic mixer was developed to build high-resolution spectrometers, and multipixel receivers in the terahertz (THz) region for applications such as radio astronomy, plasma diagnostics, and remote sensing. The mixer consists of a quartz-based local oscillator (LO), intermediate-frequency (IF) circuits, and a GaAs-based beam-lead THz circuit with an integrated diode. Measurements of the harmonic mixer were performed using a 2 THz solid-state source and 2.6906 THz QCL. A conversion loss of 27 dB for the third harmonic mixing and a conversion loss of 30 dB for the fourth harmonic mixing were achieved. This is the first development of a wideband WM-86 (WR-0.34) harmonic mixer with a planar Schottky diode integrated on a beam-lead THz circuit that uses a lower LO harmonic factor for 1.8-3.2 THz RF frequency. Furthermore, this result represents the best Schottky-based mixer in this frequency range.

引用

页码：737 / 746

页数：10

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