Abstract In this letter, a low‐profile metasurface (MS) antenna with multi‐polarization and pattern reconfigurability is presented. The mainly consists of two parts, including loop fed by balun, MS excited the coupled aperture. When switching PIN diode rotating MS, reconfigurable ability obtained. While excited, horizontally linear polarized (HLP) wave omnidirectional are Besides, when operated...

This paper presents a novel polarization-reconfigurable antenna based on the combination of circularly polarized (CP) modes, which is capable changing its polarization states among arbitrary linear polarizations (LPs), left-handed circular (LHCP) and right-handed (RHCP). A truncated square patch with two isolated aperture-coupling feeds used as radiation element operating at 2.45 GHz, can opera...

Kyungho Chung et al. 379 ABSTRACT⎯A novel reconfigurable microstrip patch antenna with frequency and polarization diversities is proposed. A U-slot is incorporated into a square patch, and a PIN diode is utilized to switch the slot on and off, which realizes the frequency diversity characteristic. The polarization diversities among linear polarization (LP), right-hand circular polarization (RHC...

A novel omnidirectional circularly polarized (CP) slot array antenna with high gain is proposed, which is based on the coaxial cylinder structure, and the orthogonal slots radi‐ ated the circular polarization wave around the cylinder. Further, the improved dual cir‐ cularly polarized (CP) omnidirectional antenna based on slot array in coaxial cylinder structure is presented too, and two ports a...

This paper presents a novel high-power rotary waveguide phase shifter based on circular polarizers specifically engineered for microwave (HPM) applications. The is capable of performing precise 360° linear shift through rotation and consists three parts: linearly polarized to left-handed circularly (LP-LHCP) mode converter, right-handed (LH-RHCP) (LP-RHCP) converter. analyzes the phase-shifting...

In this work, an innovative method for controlling the current distribution of radiating patch by adjusting input phase is investigated to achieve both pattern and polarization reconfigurable characteristics multifunction. A compact low-profile antenna with four fed ports designed implement proposed method, which can operate linear, right-hand circular (RHCP) left-hand (LHCP) different beam dir...