## Abstract A novel compact and ultra wideband antenna with a printed monopole structure is presented in this article. It is demonstrated that with a modified‐shape ground plane, an ultra wide bandwidth can be achieved with small radiation element size. Simulation and measurement results show that
Ultra-wideband printed fork-shaped monopole antenna with a band-rejection characteristic
✍ Scribed by Wen-Chung Liu; Shu-Ming Chen
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 310 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A novel ultra‐wideband design of a printed fork‐shaped monopole antenna with a band‐rejection characteristic is presented. The proposed antenna with a simpler structure has a larger impedance bandwidth, defined by voltage standing wave ratio ≤ 2, covering the range from 3.09 to 11 GHz, and a tunable cutoff band throughout adjustment of the centre strip length of the fork‐shaped monopole. Measured monopole‐like radiation patterns and in‐band antenna gains ≥ 2 dBi have also been obtained, simultaneously, with good agreement to the simulated results. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1536–1538, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22495
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## Abstract By embedding a simple arc‐shaped slot in a circular‐disk monopole antenna, an ultra‐wideband (UWB, 3.1–10.6 GHz) operation with a controlled notched frequency band can be obtained. The arc‐shaped slot is placed close to the boundary of the circular‐disk monopole and has a length of abou
## Abstract A compact printed ultra‐wideband (UWB, 3.1–10.6 GHz) circular‐slot antenna with a notched frequency band at 5 GHz is presented. The antenna is a uniplanar structure and occupies a compact area of 25 × 26 mm^2^ only (the side length is less than 27% of the lower edge frequency at 3.1 GHz