## Abstract A novel shorted patch antenna with a shorted parasitic patch for dual‐band operation is proposed. The upper and lower operating frequencies are, respectively, controlled by the driven and parasitic patches, which are both operated as a quarter‐wavelength structure in the proposed design
Small helical antenna for the applications of the dual ISM bands
✍ Scribed by Chien-Jen Wang
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 90 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A new design of a miniaturized multilayer ceramic (MLC) antenna is proposed and presented for the applications of the dual ISM bands (hyper LAN and WLN). The antenna‐size reduction is achieved by folding the simple microstrip monopole around a low‐temperature co‐fired ceramic (LTCC) substrate. This paper presents measured data to show that the 10‐dB bandwidths achieved were 180 MHz and 750 MHz at 2.4 GHz and 5.2 GHz, respectively. The co‐polarization far‐field radiation patterns of the chip antenna are quasi‐omnidirectional at 2.4 GHz and 5.2 GHz. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 140–142, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10848
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