Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Thank you for visiting RF Cafe!
Innovative Power Products Resistors

need help!! Effects of changing dimentions in patch antenna - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

Below are the old forum threads, including responses to the original posts.

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

eee
 Post subject: need help!! Effects of changing dimentions in patch antenna
Posted: Sun May 08, 2005 9:22 pm 
hiya, i'm a 2nd yr Beng student currently studying patch antennas. i really want to know the effects of changing ground plane size,director size and height, feed line width and patch diameter, etc in dual stub circular patch antennas, similar to those in some 3G base station antennas.

i already know changing of feed line width and ground plate can alter the bandwith, but why?and i can hardly find some explanation of how director works, and why it helps to increase the operation bandwidth.

it seens every diameter being changed is related to bandwidth, why?

( i really want to know the effects of changing ground plane size,director size and height, feed line width and patch diameter, etc )

thanks a lot for helping me!!!!


 
  
 
oren
 Post subject:
Posted: Fri May 27, 2005 7:13 am 
for a start

open google

and look for : " microstrip antennas pdf"



Posted  11/12/2012
Windfreak Technologies ConductRF Precision RF VNA Test Cables - RF Cafe
Exodus Advanced Communications - RF Cafe Berkeley Nucleonics Webinar Buying Signal Generator - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com

spacer

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free