Wideband patch antenna array for multi-band UWB
2004 (English)In: Proc. IEEE 11th Symp. on Communications and Vehicular Tech., Ghent, Belgium, November, 2004Conference paper (Refereed)
As wireless communication applications require more and more bandwidth, the demand for wideband antennas increases as well. For instance, ultra wideband radio (UWB) will utilize the frequency-band of 3.1-10.6 GHz. Microstrip patch antennas have advantages of low cost and compatibility to the printed circuit board (PCB) technology, having the possibility to integrate the antenna with the circuit board. Since patch antennas have ground planes, components can be placed on the other side of the PCB, this allows a compact module design. However, the microstrip patch antenna has drawback of small bandwidth. Bandwidth is limited since the substrate height is limited. To overcome these drawbacks, we have studied a method to use a patch array with varied patch lengths on a low loss PCB. Patches electrically far away from each other will give independent resonances. By choosing several patch lengths so that the standing wave ratio (SWR) plots of the antennas overlap, they can be combined into one wideband with a power-divider. Several arrays can be combined to a multi-band antenna system using switches. A patch antenna array for the multiband UWB in the frequency band of 3.1-10.6 GHz is presented in this paper.
Place, publisher, year, edition, pages
Ultra wideband, UWB, patch antenna, wireless, antenna array
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-12793OAI: oai:DiVA.org:liu-12793DiVA: diva2:17070
IEEE 11th Symp. on Communications and Vehicular Tech., Ghent, Belgium, November