Design of an ultra-wideband dual band-notched wearable antenna
Based on Denim flexible materials, a miniaturized double-notch ultra-wideband wearable antenna was designed.The antenna was composed of denim fabric substrate, slotted monopole radiation patch and defective ground plane, which had ultra-wideband characteristics and could cover the ultra-wideband frequency range of 3. 1-10. 6 GHz. Double notch characteristics were achieved by etching two new sinuous slots on the antenna ground plane and adding symmetrical branches to the monopole radiation patch. The antenna has a compact structure and the size is only 24 mm × 28 mm × 0. 84 mm. The simulated-10 dB impedance bandwidth of the antenna is 143. 7％ ( 2. 95-18 GHz) , and it has double notch characteristics in the frequency bands of 3. 24-3. 87 GHz and 5. 11-5. 91 GHz, which can effectively suppress the interference in the Worldwide Interoperability for Microwave Access ( WiMAX) and Wireless Local Area Network ( WLAN) frequency bands. In addition, the flexibility, radiation performance, and human safety performance of the antenna were analyzed. The measured results are consistent with the simulation results, indicating that the antenna can be used in the wearable systems.
wearable antennaultra-widebanddual band-notchedflexible material
万方数据
维普
