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A compact printed spiral‐slot multimode antenna operated at its quarter wavelength (λ/4) mode as the fundamental resonant mode for digital television (DTV) signal receptions is presented. To achieve broadband characteristics, the proposed antenna is constructed by embedding the eight different quarter‐wavelength spiral slots on system ground plane and is fed using a 50‐Ω microstrip. The eight spiral...
A small size PIFA using intergidital coupling feed for internal mobile phone antenna application has been proposed and studied. The proposed PIFA is easily printed on the no-ground portion of the system circuit board of the mobile phone at lowcost and occupies a very small area of 400 mm2 only, owing to the successful excitation of the mode as the fundamental resonant mode. The interdigital coupling...
A printed chip type antenna using monopole spiral slot structures with system ground for digital video broadcasting-handheld (DVB-H) signal reception in the UHF band is proposed. By utilizing the eight quarter-wavelength spiral slot l a radiator in configuration. In this case, the occupied area of the monopole slot chip antenna on the system circuit board can be further reduced. Antenna has a compact...
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