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公开(公告)号:DE68923924T2
公开(公告)日:1996-04-18
申请号:DE68923924
申请日:1989-05-22
Applicant: IBM
Inventor: DULING III , GRISCHKOWSKY DANIEL R , HALBOUT JEAN-MARC , KETCHEN MARK B
IPC: H01L31/0248 , H01S3/00 , H03B11/00 , H04B10/00 , H04B10/02 , H04B10/10 , H04B10/118 , H04B10/22 , H04B10/43 , H04L27/04
Abstract: A communication system for transmitting and receiving terahertz signals has a emitter employing a resonant radiating antenna (5) connected to an ultrafast switch (6). The switch (6) is a subpicosecond photoconducting switch coupled to a coplanar transmission line (11) having a pair of approximately 1 micron wide A1 lines deposited on an SOS substrate. The transmission line (11) is separated from the tip of the antenna (5) by a photoconducting gap forming the switch and is driven by a laser pulse. Utilizing the gap excitation principle, the transmitting antenna (5) radiates a freely propagating signal that may be received by an identical structure either on the same or on different substrates.
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公开(公告)号:DE68923924D1
公开(公告)日:1995-09-28
申请号:DE68923924
申请日:1989-05-22
Applicant: IBM
Inventor: DULING III , GRISCHKOWSKY DANIEL R , HALBOUT JEAN-MARC , KETCHEN MARK B
IPC: H01L31/0248 , H01S3/00 , H03B11/00 , H04B10/00 , H04B10/02 , H04B10/10 , H04B10/118 , H04B10/22 , H04B10/43 , H04L27/04
Abstract: A communication system for transmitting and receiving terahertz signals has a emitter employing a resonant radiating antenna (5) connected to an ultrafast switch (6). The switch (6) is a subpicosecond photoconducting switch coupled to a coplanar transmission line (11) having a pair of approximately 1 micron wide A1 lines deposited on an SOS substrate. The transmission line (11) is separated from the tip of the antenna (5) by a photoconducting gap forming the switch and is driven by a laser pulse. Utilizing the gap excitation principle, the transmitting antenna (5) radiates a freely propagating signal that may be received by an identical structure either on the same or on different substrates.
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