File:10Gig Tunnel Amp M.jpg
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Summary[edit]
Description10Gig Tunnel Amp M.jpg |
English: 8-12 GHz tunnel diode amplifier manufactured by Aertech, used in aerospace applications. This is a two-stage amplifier. Each stage consists of a reflection amplifier made of a biased negative resistance tunnel diode and a circulator, a three-port ferrite device that separates the output signal from the input, and matching networks. The input signal to each device is applied to port 1 at bottom of its heat sink, and is transferred to port 2 at right, connected to the tunnel diode mounted in the heat sink. The output from the tunnel diode emerges from port 3 at the top of the device. The circulator provides about 20dB isolation of the output from the input, so the gain of each stage must be limited below this value to prevent feedback, requiring 2 or more stages to achieve significant amplification. More information on these amplifiers is on Brooke Clarks Aertech website |
Date | 21 February 2009 Zen-in (talk) 22 February 2009 (original upload date) |
Source |
Digital photo created by Zen-in . |
Author | Zen-in at English Wikipedia |
Other versions | Wiki link to other versions if they exist within the Wikimedia Commons (e.g. a black and white version of a color image) |
Licensing[edit]
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
Attribution: Zen-in at the English Wikipedia | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Original upload log[edit]
Transferred from en.wikipedia to Commons by Methecooldude using CommonsHelper on Labs.
- 2009-02-22 03:26 Zen-in 1000×750× (172760 bytes) {{Information |Description = 8-12 GHz Tunnel Diode amplifier |Source = Digital photo created by [[User:Zen-in|Zen-in]] |Date = 21. Feb. 2009 ~~~~ |Permission = {{GFDL-self}} |other_versions = Wiki link to other versions if they exist within the Wikimedia
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current | 23:16, 19 January 2012 | 1,000 × 750 (169 KB) | Upload Bot (Rich Smith) (talk | contribs) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|8-12 GHz Tunnel Diode amplifier}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; tran |
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Metadata
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Image title |
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | u720SW,S720SW |
Exposure time | 1/200 sec (0.005) |
F-number | f/4 |
ISO speed rating | 200 |
Date and time of data generation | 22:58, 21 February 2009 |
Lens focal length | 9.13 mm |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | Adobe Photoshop Elements 6.0 Windows |
File change date and time | 19:00, 21 February 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 22:58, 21 February 2009 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 3.61 APEX (f/3.49) |
Metering mode | Pattern |
Light source | Tungsten (incandescent light) |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Supported Flashpix version | 1 |
Image width | 1,000 px |
Image height | 750 px |
Date metadata was last modified | 11:00, 21 February 2009 |