Abstract
AbstractA short‐circuit load broadband circularly polarized (CP) magnetoelectric (ME) dipole antenna is proposed for WiMAX, Global System for Mobile Communications (GSM), and Radio Frequency Identification (RFID). The co‐directional electric dipole and magnetic dipole work together to radiate CP electromagnetic waves. The magnetic dipole is realized by a pair of vertical grounded metal patches and the electric dipole is accomplished by a pair of rotationally symmetric horizontal metal patches. The outer edges of the horizontal patches are extended to bend downward and shorted to ground for low‐profile, miniaturization, and axial ratio (AR) bandwidth enhancement. A pair of knife‐shaped horizontal patches effectively enhances the AR bandwidth of the proposed antenna. A prototype is fabricated, and the measured results show that the proposed antenna achieves 67.2% (1.7‐3.42 GHz) 3‐dB AR bandwidth and 87.5% (1.33‐3.4 GHz) impedance bandwidth for |S11| ≤ 10 with a small size of 0.8λL × 0.386λL × 0.177λL (λL denotes to the maximum operation frequency). Over the entire AR frequency band, stable radiation pattern is obtained. Furthermore, the maximum boresight gain is up to 10.4 dBic at 2.4GHz, and the boresight gain is greater than 4.2 dBic over 3‐dB AR band.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
