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This paper presents two MIMO antennas for 2G, 3G and 4G cellular handsets. Each antenna is meandered to form a loop structure for achieving resonance at 0.25λ and 0.5λ. The substrate used for the design is FR-4 with relative permittivity of 4.35 and loss tangent of 0.02. The overall size of the substrate is 70 × 107.5 × 0.8 mm3 with each antenna occupying an area of 50 × 10 mm2. The decoupling structure...
This paper presents a compact multiband antenna system for mobile handsets capable of covering 2G, 3G and 4G cellular frequency bands. The antenna system is composed of two antennas that are etched diagonally on the non-grounded portion of the substrate board. The substrate board used is FR-4, of relative permittivity 4.35 and loss tangent of 0.02, with overall dimensions of 136 × 70 × 0.8 mm3. The...
A low profile and compact printed pattern reconfigurable antenna for mobile handsets is presented in this paper. The antenna is capable of covering GSM 1800(1710–1880 MHz), GSM 1900(1850–1990 MHz), UMTS (1920–2170 MHz), WLAN (2400–2480 MHz) and LTE frequency bands in the range of 1.7–2.7 GHz when referenced to a return loss of 6dB. The antenna is composed of a coupled fed meandered monopole antenna...
An internal penta-band monopole antenna with compact size and low cost characteristics is proposed, which can cover GSM850, GSM900, DCS1800, PCS1900 and WCDMA2100 bands simultaneously. The antenna comprises a driven monopole and a parasitic shorted patch, which is used to increase the antenna's bandwidth. A prototype is fabricated and measured. Both of the simulated and measured results show the antenna...
A study is described of a modified planar inverted-F antenna (PIFA) operating in 2.5 GHz band on a printed circuit board (PCB) of a mobile phone handset. The antenna dimension is reduced substantially with a miniature ground plane and capacitive loading. While inheriting the attractive features of PIFAs, such as low profile, easy fabrication and low cost, the proposed antenna exhibits low coupling...
This paper investigates a dual-element modified planar inverted F antenna (PIFA) array mounted on the PCB of a mobile handset operating at around 2.45 GHz band. It not only retains the unique features of a conventional PIFA, but also offers low mutual coupling, low correlation coefficient and high diversity gain
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