- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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Planar UWB Monopole Antenna with Tri-Band Rejection Characteristics at 3.5/5.5/8 GHz
摘要： A triple band-notched ultrawide band (UWB) antenna is presented to avoid the interference of services working in the UWB band, such as WLAN, WiMAX and X-band satellite systems. The arc H-shaped slot on the radiating patch creates a low frequency notched band, while the other two band-notched bands are formed by cutting narrow slots on the ground plane. The presented antenna can operate on the ultrawide band efficiently and inhibit interference from three different kinds of narrow band communication systems. The simulation and measurement results show that the antenna has excellent band-notched function on the rejectband and almost omnidirectional radiation pattern on the passband.
关键词： planar monopole antenna,slots,triple band-notched,ultrawide band (UWB) antenna
更新于2025-09-23 15:23:52
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A Low-Profile, Directional, Ultrawideband Antenna
摘要： A compact low pro?le, ultrawideband (UWB) antenna providing directional radiation pattern is proposed. The antenna is based on a modi?ed Vivaldi antenna, and is characterized by a three-dimensionally (3-D) bended structure. Each of the two radiation ?ns is capacitively loaded with an invert trapezoidal metallic plate at the end. In order to conveniently mount the antenna on the metal surface, a corrugated plate is added as a ground. Owing to the bended structure and capacitively loaded scheme, the antenna has a low pro?le of 0.216λm, where λm is the wavelength at the minimum operating frequency. The prototype of the antenna is fabricated and measured. The measured and simulated results show good agreement. The measured results show that the antenna has VSMR < 2.5 from 0.9 to 10 GHz and measured gain from 3.6 to 8.2 dBi.
关键词： low pro?le antenna,directional radiation,ultrawide-band (UWB) antenna,three-dimensionally (3-D) structure
更新于2025-09-04 15:30:14