Differential Stepped-Slot UWB Antenna With Common-Mode Suppression and Dual Sharp-Selectivity Notched Bands
A differential stepped-slot UWB antenna with common-mode suppression and dual sharp-selectivity notched bands is proposed in this letter. The antenna adopts stepped slot as radiator to achieve ultrawideband. Under differential-mode operation, the stepped slot can be effectively excited by feeding mi...
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Published in | IEEE antennas and wireless propagation letters Vol. 15; pp. 1120 - 1123 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | A differential stepped-slot UWB antenna with common-mode suppression and dual sharp-selectivity notched bands is proposed in this letter. The antenna adopts stepped slot as radiator to achieve ultrawideband. Under differential-mode operation, the stepped slot can be effectively excited by feeding microstrip, and differential signals can be radiated. However, under common-mode operation, the stepped slot would not be excited so that the common-mode suppression can be achieved. In order to achieve dual sharp-selectivity notch-band characteristic, quarter-wavelength slits are etched on the ground, and half-wavelength stubs are introduced beside the microstrip, respectively. As a result, dual second-order notched bands with sharp selectivity are obtained. The measured results show that the proposed antenna obtains good common-mode suppression characteristic and dual sharp-selectivity notched bands from 5.1 to 6.0 GHz and 7.83 to 8.47 GHz. Good agreement is achieved between the measured results and the simulated results. |
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ISSN: | 1536-1225 1548-5757 |
DOI: | 10.1109/LAWP.2015.2496159 |