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Ajrocker
Antenna-Theory.com Newbie
Joined: 01 May 2009
Posts: 1
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 Posted: Fri May 08, 2009 3:18 am Post subject: Microstrip Antenna |
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Hi,
Can anyone tell me what effect does the width of the microstrip antenna have on the radiation pattern and gain and any other parameters of a microstrip antenna. Assume any kind of feed line.
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Schubert
Antenna Wizard
Joined: 08 Apr 2009
Posts: 161
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| Posted: Fri May 08, 2009 5:58 am Post subject: Patch or Microstrip Antenna Width |
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| Primarily, the width controls the impedance of the microstrip antenna. The wider it is made, the lower the impedance is. A square microstrip or patch antenna fed at the end would have an impedance of about 200 or so Ohms. If it was made much wider (for a given length), the impedance can be reduced to 50 Ohms, over a small bandwidth. The efficiency and directivity don't change much. |
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