Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Electrical and Computer Engineering

PDF

Technological University Dublin

Series

1999

1 to 6 GHz S band SHF SMA connector UHF accuracy broadband antenna constant radiation pattern feedgap distance frequency range groundplane impedance bandwidth planar element

Articles 1 - 1 of 1

Full-Text Articles in Engineering

Square Planar Monopole Antenna, Max Ammann Jan 1999

Square Planar Monopole Antenna, Max Ammann

Conference papers

A planar monopole may be realised by replacing the wire element of a conventional monopole with a planar element. In this case, the planar element which is square, is located above a groundplane and fed using an SMA connector as illustrated. The square monopole has a simple geometry and a smaller bandwidth compared to the circular-disc monopole. However, it is still a broadband antenna with a typical impedance bandwidth of 75 % at S band. This broadband antenna shows a constant radiation pattern over the impedance bandwidth. A simple formula for the frequency corresponding to the lower edge of the …