Antenna and resonant frequency tuning method thereof
First Claim
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1. An antenna, comprising:
- a substrate;
a microstrip line;
a ground plane, wherein said ground plane and said microstrip line are formed on the opposite surfaces of said substrate, and said ground plane comprises an aperture; and
a resonator structure, placed on said ground plane, and a first resonator and a second resonator of said resonator structure are separated by a gap, wherein said microstrip line is used to feed said resonator structure through said aperture, and said first resonator comprises;
a first bottom surface, wherein said first bottom surface and said ground plane coincide, and a first tunnel is engraved at the corner where said gap and said first bottom surface meet; and
said second resonator comprises;
a second bottom surface, wherein said second bottom surface and said ground plane coincide, and a second tunnel is engraved at the corner where said gap and said second bottom surface meet.
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Abstract
A dual-band dielectric resonator antenna (DRA) is designed by splitting a rectilinear DR and carving notches and tunnels off the DR. The antenna comprises a substrate, a microstrip line, a ground plane and a resonant structure, wherein a first resonant part and a second resonant part of the resonant structure are separated by a gap. The proposed DRA can cover both the WiMAX (3.4-3.7 GHz) and the WLAN (5.15-5.35 GHz) bands by engraving notches and tunnels at different positions of the first resonant part and the second resonant part.
19 Citations
24 Claims
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1. An antenna, comprising:
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a substrate; a microstrip line; a ground plane, wherein said ground plane and said microstrip line are formed on the opposite surfaces of said substrate, and said ground plane comprises an aperture; and a resonator structure, placed on said ground plane, and a first resonator and a second resonator of said resonator structure are separated by a gap, wherein said microstrip line is used to feed said resonator structure through said aperture, and said first resonator comprises; a first bottom surface, wherein said first bottom surface and said ground plane coincide, and a first tunnel is engraved at the corner where said gap and said first bottom surface meet; and
said second resonator comprises;a second bottom surface, wherein said second bottom surface and said ground plane coincide, and a second tunnel is engraved at the corner where said gap and said second bottom surface meet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A resonant frequency tuning method for antenna, comprising the steps of:
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providing an antenna, comprising; a substrate; a microstrip line; a ground plane, wherein said ground plane and said microstrip line are formed on the opposite surfaces of said substrate, and said ground plane comprises an aperture; and a resonator structure, placed on said ground plane, and a first resonator and a second resonator of said resonator structure are separated by a gap, wherein said microstrip line is used to feed said resonator structure through said aperture, and said first resonator comprises; a first bottom surface, wherein said first bottom surface and said ground plane coincide, and a first tunnel is engraved at the corner where said gap and said first bottom surface meet; and said second resonator comprises; a second bottom surface, wherein said second bottom surface and said ground plane coincide, and a second tunnel is engraved at the corner where said gap and said second bottom surface meet, adjusting the dimensions of said resonator structure to tune the resonant frequencies of said antenna; adjusting the width of said gap to tune the resonant frequency of the TE111y mode of said antenna and increasing the bandwidth of the TE111y mode of said antenna; and adjusting the dimensions and the positions of said first and second tunnel to tune the resonant frequency of the TE112y mode of said antenna. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification