Title:
光導電アンテナ素子
Document Type and Number:
Japanese Patent JP5222532
Kind Code:
B2
Abstract:
This invention relates to a photoconductive antenna element having a structure capable of preventing element characteristics from deteriorating and attain a smaller size at the same time. This photoconductive antenna element (17) comprises a pair of electrodes (21) formed on a semiconductor layer (19). Each electrode (21) is constituted by an antenna part (22), pad parts (23), and a line part (24) connecting them, while the line part (24) includes a parallel portion (24a) extending from the antenna part (22). In the line part (24) of one electrode (21), a portion other than the antenna region (A) is bent opposite to the other electrode (21). In the line part (24) of the other electrode (21), a portion other than the antenna region (A) is bent opposite to the one electrode (21). This structure can prevent the photoconductive antenna element (17) from deteriorating its element characteristics and make it smaller.
Inventors:
Kuroyanagi
Kazutoshi Nakajima
Kazutoshi Nakajima
Application Number:
JP2007295978A
Publication Date:
June 26, 2013
Filing Date:
November 14, 2007
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01Q9/16; H01Q1/38; H01Q9/28; H01Q15/02; H01S1/02
Domestic Patent References:
| JP2004207288A | ||||
| JP2006170822A | ||||
| JP2002223017A | ||||
| JP2004363485A |
Other References:
Kyungsik Moon, Haewook Han and Ikmo Park,Terahertz Folded Half-Wavelength Dipole Antenna for High Output Power,2005 International Topical Meeting on Microwave Photonics, Proceedings,2005年10月,pp.301 - 304
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Satoru Ishida
Kenichi Shibayama
Shiro Terasaki
Satoru Ishida
Kenichi Shibayama