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This paper presents a novel compact dual-band printed quadrifilar helix antenna (PQHA) for application in Compass Navigation Satellite System (CNSS) of China. This antenna is consisted of two quadrifilar helix elements that are arranged at inner and outer cylinder. It works at the B1 (1.561GHz) and S (2.492GHz) bands. Each four spiral arms is excited by a series feed network in equal magnitude and...
A compact conformal planar inverted-F antenna (PIFA) array, working at UHF band, is presented in this paper. This array consists of four PIFA elements. The parallel feeding network has been designed to drive the elements. The size of the proposed array is 100.5 mm × 48 mm. The proposed antenna is fabricated on a very thin substrate with a thickness of 0.254 mm, which is benefit for conformal structure...
A printed inverted-F antenna integrated on the displacement detector for wireless sensor network applications is designed and studied. The antenna, the ground plane, and other required components are integrated onto a two-layer FR-4 PCB. The antennas with two rectangular plates, with circuit layout, and with mounted ICs are analyzed, respectively. Adding the circuit layout on the PCB shifts the working...
By using twin stepped-patch radiators and a protruded ground, a micro-strip-fed monopole antenna with wide dual-band operation can be obtained. The proposed antenna with an overall size of 32 times 25 mm can excite resonances at the 2.61 and 5.52 GHz bands with impedance bandwidths of 710 MHz (2.32-3.03 GHz) and 1.56 GHz (4.77-6.33 GHz), average antenna gains of 2.9 and 3.5 dBi, respectively, and...
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