Triple band notch compact MIMO antenna with defected ground structure and split ring resonator for wideband applications

Abstract

A triple band notch multiple-input-multiple-output (MIMO) antenna is designed and proposed with complementary-split-ring-resonators (CSRR) on upper side and defected ground structure on bottom portion of the FR4 substrate material. A square shaped radiating element with cone shaped microstrip line feeding is used in the current design to achieve 50-ohm impedance. A compact dimension of 36 Â 22 Â 1.6 mm is used to fit this model for portable communication devices. Split ring resonators are placed adjacent to the feed line to improve the gain and defected ground with stubs is placed to enhance the bandwidth characteristics. Proposed antenna has bandwidth ranging from 2 to18 GHz with notching at 5.2-5.8 GHz (WLAN), 11-12 GHz (Satellite Broadcasting) and 12.5-14.5 GHz (Aeronautical Radio Navigation). The envelope correlation coefficient (ECC) is less than 0.005 and mutual coupling is less than 15dB achieved. The prototyped antenna is providing peak realized gain of 5dB and maximum efficiency of 75% in the operating band. The results strongly support the applicability of current antenna model with band notching in wideband communications.

Study of a printed split-ring monopole for dual-spectrum communications

“…The peak gain and the efficiency of the antenna are depicted in Figure 10 . It is noticed that a reasonable gain performance is obtained and the efficiency is above 93% and better than those reported in the literature [ 34 , 35 , 36 , 37 , 39 , 40 ]. Table 2 shows a comparison between the proposed design and other designs reported.…”

A quad-port multiple-input-multiple-output system for underlay or interweave cognitive radio

“…Multiple input, multiple output (MIMO), the concept of having multiple antennas with duplicated functionality on the same substrate becomes day by day more essential to address the needs of the growing wireless communication world. Such antenna structures are indeed the corner stone in most fourth generation (4G) and fift generation (5G) communication systems [1] mainly due to what they offer regarding high throughput and diversity merits [2]. MIMO, in conjugate with ultra-wide band (UWB) technology and its license-free utilization over the 3.1-10.6 GHz range approved by federal communications commission (FCC) in 2002, looks optimum to fulfill the high data rates needs of users in modern wireless communication [3].…”

Dual-Band Microstrip Antenna Based on Polarization Conversion Metasurface Structure

“…Metasurface, due to its extraordinary electromagnetic properties, is widely used in antenna design [12][13][14], namely in the realization of multi-band [15,16], ultra-wide-band [17][18][19], and high-gain antenna [20,21]. In most cases, the metasurface structure is loaded on the antenna as a radiating element.…”