• Parul Pandey
• Prakash Saxena
• Saurabh Gupta

The rapid growth of wireless communication systems and the increasing demand for higher data rates have fueled the development of millimeter-wave (MM-wave) technology for 5G and other wireless applications. In this review paper discuss the different multi-band MM-wave wearable antenna. Millimeter wave (mm Wave) bands attract large research interest as they can potentially lead to data rate of almost 10Gbits/sec and huge available bandwidth where as the microwave frequencies are limited to 1Gbits/s. This paper presents a comprehensive review of millimeter wave communications, frequency bands proposed by ITU, applications of mm Waves, advantages, limitations, challenges and research directions. Various antennas proposed by researchers for mm Wave applications are described in detail. The described models are analyzed and compared with common antenna parameters.

Frequency reconfigurability, polarization reconfigurability, axial ratio bandwidth (AR B.W.), tuning range (TR), fractional bandwdith change (FBWC), PIN diodes, varactors.

"Multi-Band MM-Wave Wearable Antenna For Different Wireless Application - A Review ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 8, page no.c472-c476, August-2023, Available :http://www.jetir.org/papers/JETIR2308254.pdf

"Multi-Band MM-Wave Wearable Antenna For Different Wireless Application - A Review ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 8, page no. ppc472-c476, August-2023, Available at : http://www.jetir.org/papers/JETIR2308254.pdf