Balun

Electrical engineering

Physics

Antenna measurement

Beamwidth

Antenna factor

Wideband

Dipole antenna

Antenna tuner

Optics

Engineering

Standing wave ratio

Microstrip antenna

Antenna (radio)

Acoustics

Electronic engineering

Computer science

Telecommunications

Coaxial antenna

IEEE Access

A novel design method of a wideband dual-polarized antenna is presented by using shorted dipoles, integrated baluns, and crossed feed lines. Simulation and equivalent circuit analysis of the antenna are given. To validate the design method, an antenna prototype is designed, optimized, fabricated, and measured. Measured results verify that the proposed antenna has an impedance bandwidth of 74.5% (from 1.69 to 3.7 GHz) for VSWR <; 1.5 at both ports, and the isolation between the two ports is over 30 dB. Stable gain of 8-8.7 dBi and half-power beamwidth (HPBW) of 65°-70° are obtained for 2G/3G/4G base station frequency bands (1.7-2.7 GHz). Compared to the other reported dual-polarized dipole antennas, the presented antenna achieves wide impedance bandwidth, high port isolation, stable antenna gain, and HPBW with a simple structure and compact size.

A Wideband Dual-Polarized Antenna Using Shorted Dipoles