Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Weather-Cocked > FreeForAll
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-29-2017, 07:11 AM
blackshire's Avatar
blackshire blackshire is offline
Master Modeler
 
Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 5,571
Default Payload antennas (links)

Hello All,

Before I get to what I came across just this morning (the information and links on it are included below), I was wondering if a new forum section--devoted to model rocket (and perhaps also HPR rocket) *payloads*, particularly active ones containing instruments and transmitters--might be worthwhile to add to our forum here. ALSO:

I just found documents that describe and illustrate how canted turnstile omnidirectional antennas are installed on spacecraft (including how they are coupled to the spacecraft’s transmitters and receivers); the below-linked 1967 NASA paper says that spacecraft’s sizes, in terms of wavelengths, do significantly affect how the matching is done, as I’d suspected—but couldn’t find any information on—until now, *and*:

As well as being useful for building AMSAT/OSCAR satellites of all sizes, including CubeSats and even < 10 gram FemtoSats, these references might also be useful for constructing effective antennas and matching systems for radio transmitter-equipped (and TV transmitter-equipped) model rocket and HPR payloads, so I figured I’d pass them along to you; they are:

“The Canted Turnstile as an Omnidirectional Spacecraft Antenna System” (by R. B. Jackson, NASA Goddard Space Flight Center, 9/9/1967): https://ntrs.nasa.gov/archive/nasa/...19670027843.pdf

Here are other canted turnstile satellite antenna articles: http://www.google.com/search?source...1.0.3MU1pttfBUY

I hope this material will be helpful.
__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 01:52 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2018