Abstract
Based on a newly proposed planar Yagi antenna with magnetic and electric dipoles, a compact 1×4 broadband dual-polarized (DP) array with endfire radiation is designed in this paper. The magnetic Yagi antenna operates on the vertical polarization while the electric one operates on the horizontal one. The compact configuration of 0.5 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> ×0.63 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> ×0.09 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> benefits from the novel half-mode magnetic Yagi antenna and the arrangement with the electric Yagi antenna. The broadband characteristic comes from the directors of the magnetic and electric Yagi antennas and the reflector of magnetic Yagi antenna. The simulation and the measurement verify this design. The measured common bandwidth of |S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> | <; -10 dB for both polarization ports is 23.8-30.1 GHz (23.7%), and the gains vary between 3 dBi and 4 dBi within 24.2-30 GHz band range. The 1×4 DP array with 0.5 λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> element space has the beam scanning range of ±43 ° at the endfire direction and the gain of higher than 7.1 dBi. The scanning performances are experimentally validated by two phase-shift feed networks for 0 ° and 30 ° main beam directions. The proposed endfire DP array has the good features of compact structure, a low profile and no clearance requirement, which is easy to integrate in 5G terminals.
Highlights
To meet the requirements of the high data rate and large capacity in the fifth and Sixth generation (5G/6G) mobile communication, the operation frequency of wireless communications has been extended to the millimeter wave band
Based on the half-mode theory, this paper proposes a novel magnetic Yagi antenna, which has wide operation band and endfire radiation characteristic
This paper proposed a compact Yagi magneto-electric dipole antenna with a newly suggested half-mode magnetic Yagi antenna
Summary
To meet the requirements of the high data rate and large capacity in the fifth and Sixth generation (5G/6G) mobile communication, the operation frequency of wireless communications has been extended to the millimeter wave (mmwave) band. Based on the half-mode theory, this paper proposes a novel magnetic Yagi antenna, which has wide operation band and endfire radiation characteristic.
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