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A Dual Band Microstrip-fed Slot Antenna

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Design Of A Novel Microstrip-fed Dual-band Slot Antenna For Wlan Applications
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A Dual Band Microstrip-fed Slot Antenna Combo

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Ring slot 1, L slotted microstrip fed monopole antenna2 indicates that the antenna proposed in this paper is relatively compact and simple in design, which would prove to be beneficial in manufacturing the antenna. In this paper, a T shaped patched antenna is presented which covers the WLAN 2.4 GHz and WiMAX 2.4 GHz.
T-shaped slot with appropriate dimension is provided on the circular patch to get dual band frequencies. The proposed antenna is probe fed and antenna parameters like Return Loss, VSWR and Radiation pattern at corresponding resonance frequencies are simulated on HFSS. The simulation of the proposed antenna is done on.

A novel microstrip-fed dual-band printed antenna for wireless local area network (WLAN) is presented. The antenna comprises a rectangular and a circular radiating element, which generate two resonant modes to cover 2.4/5.2/5.8 GHz WLAN bands.

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This item is available under a Creative Commons License for non-commercial use only

Abstract

A compact dual-band annular-slot antenna loaded by a concentric split-ring-slot is presented. A stepped microstrip feedline enables the control of the coupling and provides good matching. The annular-slot is connected to the split-ring-slot by a rectangular slot, which increases the surface of the current path, thus notably reducing the resonant frequency for a given size. The embedded split-ring-slot structure allows many resonant modes to be realised. By tuning the key parameters, these operating modes and their bandwidths can be controlled. A wide bandwidth can be realised for either the lower band, upper band or both bands simultaneously, depending on the application. Measured results show that the bandwidths in the region of 45-15% and 32--8.4%, can be provided for the lower and upper bands, respectively. For the case where a wideband response is required for both bands, it is shown that 26 and 32% can be realised. A 30%miniaturisation is also achieved compared with conventional annular ring slot antennas.

Recommended Citation

Bao, X. & Amman, M. 92009) Microstrip-Fed Dual-Frequency Annular-Slot Antenna Loaded by Split-Ring-Slot. IET Microwaves, Antennas and Propagation, Vol. 3, 5, 2009, pp. 757-764. doi:10.1049/iet-map.2008.0193

DOI

https://doi.org/10.1049/iet-map.2008.0193

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2006 IEEE Antennas and Propagation Society International Symposium>3597 - 3600

Abstract

A compact dual- and wide-band cavity-backed slot antenna subarray has been presented in this paper. Ridged slots have been employed in the design to shorten the slot length. Four slots are fed by two feeding networks printed on the upper layer of a substrate for great design flexibility. The designed antenna has been measured and experimental results have shown that the 10 dB return loss bandwidth is 7.5% for 900 MHz band and 26% for 1800 MHz band, respectively. Because of its compact size and good radiation patterns at both frequency bands, this described subarray can be very useful for dual-band array applications

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book ISBN :	1-4244-0123-2
DOI	10.1109/APS.2006.1711398

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