Wideband linear microstrip array antenna with high efficiency and low side lobe level

Morteza Mohammadi Shirkolaei

2020International Journal of RF and Microwave Computer-Aided Engineering34 citationsDOI

Abstract

In this letter, the design and fabrication of the linear microstrip array antenna by series fed are presented. The array antenna consists of 16 reflector slot-strip-foam-inverted patch (RSSFIP) antennas. The gain and efficiency of the linear array antenna is 16.6 dBi and 61% at 10 GHz, respectively. The antenna has a bandwidth (BW) of 45% from 8.1 to 12.8 GHz (S11 < −10 dB) and side lobe level (SLL) of −25.6 dB across the BW of 19.2% from 9.4 to 10.4 GHz. These are achieved by using a microstrip series fed with defected ground structure (DGS) to feed the patch array antenna. Good agreement is achieved between measurement and simulation results.

Topics & Concepts

Microstrip antennaSide lobePatch antennaAntenna measurementWidebandAntenna arrayCoaxial antennaAntenna efficiencyMicrostripOpticsAntenna (radio)AcousticsPhysicsMaterials scienceTelecommunicationsComputer scienceAntenna Design and AnalysisMicrowave Engineering and WaveguidesAntenna Design and Optimization