A single-layer dual-frequency rectangular microstrip patch antenna using a single probe feed

Abstract

Hybrid Modes Characteristics in Multilayered Faraday Chirowaveguides," .I. Electromagn. Woes Appl., to be published. Receiwd 5-30-95; revised 9-5-95 ABSTRACT A simple design of a dual-frequency microstrip antenna using a single rectangular patch and a single probe feed is described. Experimental results of the antenna resonating at frequencies of about 1.42 and 1.54 GHz are presented. Measurements are uerijed by the theoretical results obtained from full-wave solutions. 0 I996 John Wiley & Sons, Inc. 606-607. 309-311.

FDTD Analysis of a Sized-Reduced, Dual-Frequency Patch Antenna

“…It is seen that the two frequencies are lowered by ∼27% and ∼9% respectively. This corresponds to an antenna-size reduction of ∼33% for a fixed dual-frequency operation using the present proposed design instead of using the simple-patch design in [13]. The square-slot loaded antenna in [15] achieves a size reduction of ∼17% and further reductions are impossible due to poor impedance matching characteristics at both bands, as stated in [15].…”

“…Designs of the dual-frequency antennas with orthogonal polarizations are reported recently [13][14][15]. In these designs, the two operating frequencies are the resonant frequencies of the TM 01 and TM 10 , modes of the rectangular microstrip patch, which are of orthogonal polarization planes, and can be excited using a single probe feed or an inclined-slot-coupling feed.…”

Dual-Band Uhf Rfid Tag Antenna Using Two Eccentric Circular Rings

“…Several methods to obtain dual-band behaviour have been reported earlier in literature. One of the techniques is the simultaneous excitation of two orthogonal modes, i.e., TM 01 and TM 10 at the first and second resonant frequencies respectively [8] by proper selection of the feed location. The use of multiple patches to generate dual bands is reported in [9,10].…”

A Modified Patch Antenna with Square-Open Loop Resonator Slot for Improved Bandwidth Performance in WiFi Applications

“…The 'Long Term Evolution' (LTE) and 'Long Term Evolution-Advanced' (LTE-A) new standards for 4G, require large bandwidths (up to 200MHz) and it is expected, that newer standards will require even higher bandwidths [6][7][8][9]. In that respect, several techniques were discussed in the literature, for bandwidth improvement, including changing the feed type, stacking the patch, modifying the geometry of the patch, and changing the feed location [10][11][12][13][14]. Each method has its own tradeoffs, particularly involving the size of the antenna.…”