Tera hertz electromagnetic device |
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| 申请号 | JP15481289 | 申请日 | 1989-06-19 | 公开(公告)号 | JPH0276347A | 公开(公告)日 | 1990-03-15 |
| 申请人 |
Internatl Business Mach Corp |
发明人 | IIRU NOERU DEYUURINGU SAADO; DANIERU RICHIYAADO GURISUCHIYO; JIINNMARUKU HARUBOOTO; MAAKU BENJIYAMIN KETSUCHIEN; | ||||
| 摘要 | PURPOSE: To generate and detect a tera Hertz wave propagated freely for a communication system by using a pulse generating system operated in an extremely high frequency method. CONSTITUTION: An ultrahigh speed switch element is an ultrahigh speed photoconductive switch 6 connecting to a coplaner transmission line 11 configured with two parallel metallic wires placed on an insulating board. A metallic pad 8 is connected to a bias voltage power supply 9 to activate the ultrahigh speed switch. A bias of about 5V is applied to a gap to short-circuit the gap by using an ultra-short laser pulse whose duration time is in the order of sub-pico seconds. A tuned 1/4 wavelength antenna structure is excited through the gap transient excitation and the oscillation is produced at this wavelength. Thus, an antenna 5 emits a radiant ray 13 with this characteristic wavelength and the radiant ray is propagated in off-chip to a remote place. COPYRIGHT: (C)1990,JPO |
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