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Linearly Tapered Slot Antenna with Defected Sides for Gain Improvement

Seongmin PYO, Dae-Myoung IN, In-Chul SHIN, Young-Sik KIM

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Summary :

A new linearly tapered slot antenna (LTSA) with defected sides is proposed in this letter. Both sides are defected with half-dumbbell shape slots that may alter the surface current intensities on both sides. As the half-dumbbell size is increased, the 3-dB beamwidth of the proposed antenna is 4° and 6° lower in the E/H-plane, respectively, than these of the LTSA without defects. Accordingly, the measured gain is improved by up to 3.75 dB and the first side lobe level is lowered by about -10.8 dB and -5.8 dB in the E/H-planes, respectively.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.10 pp.2655-2657
Publication Date
2010/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.2655
Type of Manuscript
Special Section LETTER (Special Section on Advanced Technologies in Antennas and Propagation in Conjunction with Main Topics of ISAP2009)
Category
Antennas

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