Design and Application of Millimeter-Wave/Microwave Antenna Array

Dear Colleagues,

Millimeter-wave (MMW)/microwave communication and sensing are critical technologies for wireless data transfer and image acquisition. With the increase in operating frequency or transmission/detection range, high-gain antennas are necessary for compensating the wireless propagation losses, thus improving the received system signal-to-noise ratio. MMW/microwave antenna arrays are the more preferred solutions compared with those bulky reflector or lens antennas of large apertures, featuring light weights, low costs, and ease of fabrication. Moreover, active devices like phase shifters or PIN diodes can be integrated with the array antenna to realize rapid beam steering or reconfigurable radiation characteristics, thus allowing the beam coverage or radiation flexibility to be considerably increased, in addition to achieving high gains. In addition, utilizing antenna arrays is also helpful in increasing the capacity for MIMO communications and enhancing image resolution or target recognition for array sensors.

Because of the requirements of various emerging system applications in recent years, there are a number of new challenges or issues that need to be overcome for MMW/microwave antenna array designs. This Special Issue aims to gather novel structural designs, beamforming algorithms, and implementation techniques for MMW/microwave antenna arrays. Topics include but are not limited to the following keywords:

• On-chip antenna arrays;
• On-package antenna arrays;
• Conformal antenna arrays;
• Flexible wearable antenna arrays;
• Shared-aperture antenna arrays;
• Leaky wave antenna arrays;
• Metasurface antenna arrays;
• Beamforming algorithms.

Prof. Dr. Xiang Gao
Prof. Dr. Zheng Li
Guest Editors

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