Experiments on metamaterials for sub-wavelength antenna insulation at PEC boundaries

Abstract

In the present work, a metamaterial‐based insulator is proposed as a mean to achieve both highly compact and loosely coupled array of antennas. Its main working principle is summarized through a general qualitative analysis. The theoretical results are supported by experimental evidences. The chosen operating frequency is 2.4 GHz considering that it is a usual frequency for many indoor wireless applications. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1420–1423, 2017

Dual‐band CPW fed MIMO antenna with polarization diversity and improved gain

“…A comparison of this work with published literatures is tabulated in Table in terms of number of bands, size, isolation, polarization and gain. The configuration in References are smaller in size than the proposed work. The proposed configuration has dual bands whereas the designs in References consist of a single band.…”

“…The configuration in References are smaller in size than the proposed work. The proposed configuration has dual bands whereas the designs in References consist of a single band. The triple‐band antenna with smaller size has poor isolation and LP.…”

“…The triple‐band antenna with smaller size has poor isolation and LP. The gain enhancement method is not introduced in References Compact dual‐band antennas are presented in References These have only LP and no gain enhancement techniques are described. In addition to this, via is used in References which increases design complexity.…”

“…The isolation between the ports of a MIMO antenna should be more than 15 dB for practical applications . Many researchers have proposed linearly polarized MIMO antenna with single‐band response in Reference and multiband responses in References and . Very few circularly polarized (CP) MIMO antennas are published in literatures .…”

Design of a compact triple band antenna with independent frequency tuning for MIMO applications

“…It is more convenient to use a multiband antenna instead of multiple antenna elements to operate in multiband, because the latter leads to increase in size of the device. Various techniques to design single band, multiband, and UWB MIMO antenna are reported in recent years in engineering community . In Ref.…”