By loading a bent slot of 60Π close to each triangle tip, a noΒ¨el dual-frequency design of a single-feed equilateral-triangular microstrip antenna is proposed and studied. By Β¨arying the length of the bent slots, the present dual-frequency design can haΒ¨e a tunable frequency ratio of ; 1.4α2.0, with
Design of a single-feed dual-frequency microstrip antenna
β Scribed by Che-Wei Su; Jeen-Sheen Row; Jia-Feng Wu
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 113 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0895-2477
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β¦ Synopsis
This paper presents a new dual-frequency design for microstrip patch antennas. The proposed dual-frequency antenna is excited by a single probe feed, and the feed position is on the rectangular patch that is surrounded by a square-ring patch. The rectangular patch not only acts as a coupling-strip feed to the square-ring microstrip antenna at a lower frequency, but can also be resonant at a higher frequency. In addition, the two operating frequency bands can produce the same linear polarization or dual polarizations. Details of the antenna designs are described. The experimental and simulated results are also shown and discussed.
π SIMILAR VOLUMES
region W. The effect of the dimensions W and H is practis w Ε½ .x cally negligible Fig. 3 c . A variation of the dimension W with respect to its nominal value, according to whether an increase or decrease can be advantageous or disadvantageous, since it must be remembered that a phase velocity in pra
No¨el design of a dual-frequency triangular microstrip antenna with a V-shaped slot is proposed and experimentally studied. By selecting suitable dimensions of the V-shaped slot, dual-frequency operation with the frequency ratio ranging from 1.488 to 1.834 has been obtained using a single probe feed
A simple design of a dual-frequency microstrip antenna using a single rectangular patch and a single probe feed is described. Experimental results of the antenna resonating at frequencies of about 1.42 and 1.54 GHz are presented. Measurements are uerijed by the theoretical results obtained from full
## A no¨el dual-frequency design of a single-layer, single-feed circular microstrip antenna with an open-ring slot s demonstrated. The open-ring slot is embedded close to the boundary of the circular patch, and has a small spacing between the two open ends of the slot. By selecting suitable widths o