A Dual-Band Offset Parallel Rectangular Printed End-Fire Antenna

Abstract

A novel dual-band offset parallel rectangular printed end-fire antenna with the double-side parallel-strip line (DSPSL) feeding is presented. The top and bottom patches are printed in parallel on two sides of a substrate plane. The proposed antenna consists of two pairs of offset parallel rectangles, the driver dipoles, the DSPSL feeding, and a curving reflector. The experimental results of the resonating frequency fit in well with the simulation results. The dual-band end-fire radiating patterns were achieved. The measured bandwidths were 20.7% for the lower frequency band (2.25-2.77 GHz) and 41.4% for the upper frequency band (4.68-7.12 GHz). The gains at two resonating frequency are about 5 dBi.