Low-Profile and Wideband Microstrip Antenna Using Quasi-Periodic Aperture and Slot-to-CPW Transition
In: IEEE Transactions on Antennas and Propagation, Jg. 67 (2019), S. 632-637
Online
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Zugriff:
In this communication, we propose a new type of compact and wideband coplanar waveguide (CPW)-fed microstrip antenna. Very different from traditional microstrip antennas, the proposed design has the quasi-periodic radiating aperture fed through the slot-to-CPW transition. By optimizing the geometry of the quasi-periodic aperture and the slot-to-CPW transition, the fundamental TM10 mode and antiphase TM20 mode can be efficiently excited, coupled, and matched over a broad bandwidth. We have fabricated and characterized the proposed antenna, and found a good agreement between measurement and simulation results. Our experimental results show that despite the antenna has a thickness of only $0.052\lambda _{0}$ ( $\lambda _{0}$ is the free-space wavelength at the center frequency), it exhibits a −10 dB impedance bandwidth of 36.5% (3.96–5.73 GHz), a 3 dB gain bandwidth of 35.4% (4–5.72 GHz), and a maximum available gain of 10.45 dBi. Our findings may offer a feasible solution to realize wideband microstrip antennas using a single-layer substrate, with unique merits, such as low profile, low cost, and ease of fabrication.
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Low-Profile and Wideband Microstrip Antenna Using Quasi-Periodic Aperture and Slot-to-CPW Transition
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Autor/in / Beteiligte Person: | Chen, Pai-Yen ; Li, Yue ; Zhang, Zhijun ; Sun, Wangyu |
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Zeitschrift: | IEEE Transactions on Antennas and Propagation, Jg. 67 (2019), S. 632-637 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2019 |
Medientyp: | unknown |
ISSN: | 1558-2221 (print) ; 0018-926X (print) |
DOI: | 10.1109/tap.2018.2874801 |
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