volume | PIER Journals

Abstract

A small-sized, low-cost, and planar integrated Bluetooth and ultrawideband (UWB) monopole antenna with band-notched characteristics in the 3.5 GHz WiMAX and 5.2/5.8 GHz WLAN band is proposed. It is fed by a microstrip line and built on a FR-4 substrate with a whole size of 18*30 mm². This proposed antenna consists of a slot on the edge of the radiation patch, which not only makes it achieve Bluetooth and UWB performance but also produces a high isolation between them. Additionally, two split rectangular ring resonators (SRRR) are placed close to the microstrip line to reject the WLAN band. Measured S₁₁ is ≤-10 dB over 2.28-2.52, 3.66-5.02, and 6.05-12 GHz. The group delay characteristic indicates good transient response in the working band. The antenna shows acceptable gain flatness with stable omnidirectional radiation patterns across the integrated Bluetooth and UWB (3.1-10.6 GHz) band.

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Dr. Ling Xiong

Prof. Peng Gao