Four-leaf clover-shaped antenna on an extended hemispherical lens for a high-output-power THz photomixer

Author

Nguyen, Truong Khang ; Woo, Insang ; Han, Haewook ; Park, Ikmo ; Lim, Hanjo

Author_Institution

Ajou Univ., Suwon, South Korea

fYear

2010

fDate

5-10 Sept. 2010

Firstpage

1

Lastpage

2

Abstract

A four-leaf-clover-shaped antenna composed of a highly resonant radiation element and a stable DC feed element and mounted on an extended hemispherical lens is described. The proposed antenna was optimized to have maximum total efficiency and maximum directivity on an extended hemispherical lens. Compared to a full-wavelength dipole antenna on a similar lens, we found a six-fold increase in the input resistance and an improvement in the total efficiency by a factor of 2.7. This is expected to reduce the impedance mismatch between the photomixer and antenna and lead to a significant increase in the THz output power.

Keywords

submillimetre wave antennas; submillimetre wave mixers; DC feed element stability; extended hemispherical lens; four-leaf clover-shaped antenna; high-output-power THz photomixer; highly resonant radiation element; input resistance; Dipole antennas; Lenses; Power generation; Resistance; Silicon; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-6655-9

Type

conf

DOI

10.1109/ICIMW.2010.5612946

Filename

5612946