Planar Inverted-F Antennas for Small Multi-Standard Handsets

Abstract

Three small multi-bandplanar inverted-F antennas (PIFAs) are presented They have been developed to be used in future small multi-standard handsets. Mobile communication (GSM1800, UMTfS), wireless local area network (WLAN) (IEEE 802. lb, HiperLAN2) and wireless personal area network (WPAN) (Bluetooth) standards have been envisaged. Prototypes have been designed, fabricated and tested. Good agreement has been obtained between numerical simulations and experimental results.

A Multi-Wideband Stacked Patch Antenna With Parasitic Resonators and Switched Slots

“…Therefore, the size reduction together with gain and bandwidth enhancement is becoming major design considerations for most practical applications of this type of antennas. Moreover the multi-band applications of smaller patch antennas are overwhelming importance of the mobile communications market [2,3]. Multi-wideband antennas design can be achieved using a stacked configuration that increase number of resonant frequencies and enhance the gain and bandwidths [4][5][6][7][8][9][10].…”

Multi-Wideband Compact Microstrip Patch Antenna Based on Slot Matching

“…Many designs and techniques such as meandered slots in the ground plane [6], slot-loaded [7,8], stacked shorted patch [9], E-shaped with compatible feeding [10] and chip resistor loading [11] have been reported to achieve a wideband and reduced size antennas. Moreover the multi-band antennas are important in areas such as mobile communication handsets and base stations systems [12,13]. Several approaches are developed in order to design multiband patch antennas such as slot matching concept [13], compact H-shaped configurations [14,15], slotted ground plane [16], shorted patches [17], and patch antennas with perturbation elements in a grid of conductive cells [18].…”