What is it about?
A UWB Filter is designed with high selectivity. Then a wide band monopole antenna has been designed. Finally the circular patch antenna was electromagnetically coupled to the Filter resulting in a highly selective UWB Filtenna.
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Why is it important?
A conventional antenna can't provide a sharp roll-off factor. Thus, there are chances of adjacent frequency components being received by the antenna, which is undesired. This is avoided by cascading a suitable filter to the antenna. But this technique may create the problem of impedance mismatching, insertion loss etc. So a new method has been adopted where the filter and antenna are integrated into a single subsystem resulting in a Integrated Filter Antenna or Filtenna.
Perspectives
The design is novel and is able to achieve the purpose. The antenna is electromagnetically coupled to the filter as oppose to the previous designs, where the authors have used cascading of UWB Filter and antenna.
Mr Anuj Kumar Sahoo
PDPM IIITDM Jabalpur
Read the Original
This page is a summary of: Highly selective integrated filter antenna for UWB application, Microwave and Optical Technology Letters, March 2017, Wiley,
DOI: 10.1002/mop.30449.
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