A Dual Band Slotted Patch Antenna on Dielectric Material Substrate

Abstract

A low profile, compact dual band slotted patch antenna has been designed using finite element method-based high frequency full-wave electromagnetic simulator. The proposed antenna fabricated using LPKF printed circuit board (PCB) fabrication machine on fiberglass reinforced epoxy polymer resin material substrate and the performance of the prototype has been measured in a standard far-field anechoic measurement chamber. The measured impedance bandwidths of (reflection coefficient<-10 dB) 12.26% (14.3–16.2 GHZ), 8.24% (17.4–18.9 GHz), and 3.08% (19.2–19.8) have been achieved through the proposed antenna prototype. 5.9 dBi, 3.37 dBi, and 3.32 dBi peak gains have been measured and simulated radiation efficiencies of 80.3%, 81.9%, and 82.5% have been achieved at three resonant frequencies of 15.15 GHz, 18.2 GHz, and 19.5 GHz, respectively. Minimum gain variation, symmetric, and almost steady measured radiation pattern shows that the proposed antenna is suitable for Ku and K band satellite applications.

Dual‐wideband semi‐circular patch antenna for Ku/K band applications

“…From a comparative overview of the impedance bandwidths between the antennas reported in Table , we observe a larger impedance bandwidth in the first band (16.78‐18.70 GHz‐10.8%) of the proposed antenna as compared to the second band (17.4‐18.9 GHz‐8.27%) of Ref. . However, if we compare overall bandwidths we observe a larger bandwidth for the proposed antenna compared to the impedance bandwidths observed at both bands of Ref.…”

“…The third band observed in Ref. lies in the frequency range of 19.2‐19.8 GHz with 3% impedance bandwidth which is lower than that of reported for the proposed antenna (16.78‐18.70‐10.8%). In Ref.…”

“…Since last few years, researchers have been investigating the implementation of the patch antennas in Ku/K band for satellite and radar applications but are still struggling to obtain the optimum structure with high gain and sufficient bandwidth. In order to obtain the compact structure with improved gain and radiation characteristics in the Ku/K band applications, different configurations of patch antenna structures have been reported by researchers . In this work, a compact dual‐wideband semi‐circular (substrate and patch both) shape micro‐strip patch antenna is presented for Ku/K band applications.…”

“…From the perusal of Table , it is clear that the total volume of the proposed antenna is greater as compared to the antennas reported in Refs. by a factor of 4.38, 1.17, and 1.95, respectively, whereas it occupies lesser volume than antennas reported in Refs. by a factor of 4.7 and 1.11, respectively.…”

A simple design of planar microstrip antenna on composite material substrate for Ku/K band satellite applications

“…Various types of techniques have found to be researched for achieving dual-band functionality: fractal shape [4,5], single/multilayer stacked antenna [6,7], bow tie radiating patch [8], cutting slot on the patch [9], alphabetic shape [10,11], parasitic inclusion [12], integrating stub [13], shorting the ground with patch [14], applying meandering slot [15] and so forth. Various types of techniques have found to be researched for achieving dual-band functionality: fractal shape [4,5], single/multilayer stacked antenna [6,7], bow tie radiating patch [8], cutting slot on the patch [9], alphabetic shape [10,11], parasitic inclusion [12], integrating stub [13], shorting the ground with patch [14], applying meandering slot [15] and so forth.…”