File:Waveguide-post-filter.JPG
Original file (3,648 × 2,736 pixels, file size: 1.31 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionWaveguide-post-filter.JPG |
English: Five-resonator triple-post waveguide bandpass filter made by Ferranti. A length of WG15 (WR112) is divided into five coupled resonant cavities, by fences of three posts each. Each of the two end-cavities is separated from its respective port by a single post and a short adjustment screw. The ends of the posts protrude through each broad-wall of the guide, making them clearly visible from the outside. The resonators are each about 30 mm long and have a central tuning screw. All seven screws are secured by jam-nuts and thread-lock and are normally protected by plastic caps (removed for the photo).
Centre frequency 7.200GHz Dimensions / mm (averaged and with spurious last digit) Along guide (post-diameter)<---post-centre-to-centre-distance--->(post-diameter): (3.18)<---29.40--->(2.82)<---31.34--->(3.18)<---31.55--->(3.18)<---31.34--->(2.82)<---29.40--->(31.8) Fence pitch across guide: 7.11 Tuning screw diameter: 3.95, insertion ~2 End screw diameter ~2.2, insertion ~2 Guide: WG15-ish (tapers too narrow to too wide) |
Date | |
Source | Own work |
Author | Catslash |
Licensing
[edit]This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:59, 23 February 2012 | 3,648 × 2,736 (1.31 MB) | Catslash (talk | contribs) |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on ca.wikipedia.org
- Usage on cs.wikipedia.org
- Usage on de.wikipedia.org
- Usage on en.wikipedia.org
- Portal:Electronics/Selected article
- Waveguide filter
- Wikipedia:Today's featured article/January 2014
- Template:Did you know nominations/Waveguide filter
- Wikipedia:Recent additions/2013/May
- User talk:Spinningspark/Archive 16
- Wikipedia:Today's featured article/January 10, 2014
- Wikipedia:Main Page history/2014 January 10
- Portal:Engineering/Selected article
- Portal:Engineering/Selected article/26
- Distributed-element circuit
- Portal:Electronics/Selected article/25
- Usage on es.wikipedia.org
- Usage on fa.wikipedia.org
- Usage on it.wikipedia.org
- Usage on zh.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Panasonic |
---|---|
Camera model | DMC-TZ6 |
Exposure time | 1/40 sec (0.025) |
F-number | f/3.9 |
ISO speed rating | 100 |
Date and time of data generation | 22:11, 22 February 2012 |
Lens focal length | 9.1 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Ver.1.1 |
File change date and time | 22:11, 22 February 2012 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 22:11, 22 February 2012 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3.44 APEX (f/3.29) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 55 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |