A Novel Meander Bowtie-Shaped Antenna with Multi-Resonant and Rejection Bands for Modern 5G Communications

Abstract

To support various fifth generation (5G) wireless applications, a small, printed bowtie-shaped microstrip antenna with meandered arms is reported in this article. Because it spans the broad legal range, the developed antenna can serve or reject a variety of applications such as wireless fidelity (Wi-Fi), sub-6 GHz, and ultra-wideband (UWB) 5G communications due to its multiband characterization and optimized rejection bands. The antenna is built on an FR-4 substrate and powered via a 50-Ω microstrip feed line linked to the right bowtie’s side. The bowtie’s left side is coupled via a shorting pin to a partial ground at the antenna’s back side. A gradually increasing meandering microstrip line is connected to both sides of the bowtie to enhance the rejection and operating bands. The designed antenna has seven operating frequency bands of (2.43–3.03) GHz, (3.71–4.23) GHz, (4.76–5.38) GHz, (5.83–6.54) GHz, (6.85–7.44) GHz, (7.56–8.01) GHz, and (9.27–13.88) GHz. The simulated scattering parameter S11 reveals six rejection bands with percentage bandwidths of 33.87%, 15.73%, 11.71, 7.63%, 6.99%, and 12.22%, respectively. The maximum gain of the proposed antenna is 4.46 dB. The suggested antenna has been built, and the simulation and measurement results are very similar. The reported antenna is expanded to a four-element design to investigate its MIMO characteristics.

Compact Super Wideband Frequency Diversity Hexagonal Shaped Monopole Antenna With Switchable Rejection Band

“…The proposed antenna has been compared to other related works available in the literature in various aspects and the comparison is summarized in Table 4. The BDR is computed to measure the antenna's compression which is described as [36] 𝐵𝐷𝑅 = %𝐵𝑊 𝜆 𝑤 𝑥 𝜆 𝐿 (4) The proposed work has a smaller antenna size compared to [11,13,16] and more bandwidth coverage compared to the listed works. The ON/OFF feature of the rejection band has been done in several works [11,12,14,15,17,18,19] but by utilizing two PIN diodes and the gain at the notch is quite lower compared to most of the reported works.…”

“…Introducing two equal slots introduced a patch creating one single rejection at 3.75 -4.875 GHz [15]. A meandered bowtie antenna having six rejecting bands and seven operating bands has been reported in [16] for modern 5G communications by connecting the left bowtie portion to the ground plane via a shorting pin.…”

Multiband Microstrip Rectenna Using ZnO-Based Planar Schottky Diode for RF Energy Harvesting Applications

“…In [ 5 ], the combination of different geometries with a coaxial ladder slot, coplanar waveguide (CPW) ground structure with a UWB monopole antenna is demonstrated. In addition, in [ 6 ], the multi-input–multi-output (MIMO) configuration of the proposed antenna shows that ultra-wideband (UWB) 5G communications are best suited for an end-user customer to accept and reject different communication services simply by utilizing the corresponding band. The UWB–MIMO isolation and gain of the antenna are enhanced using a parasitic isolator, and the surface is also shown as a radiator in the form of an arc with a lower ground plane composed of parasitic components in [ 7 , 8 ], respectively.…”

Design of a Tri-Band Wearable Antenna for Millimeter-Wave 5G Applications

“…The increase in the number of users will cause a need for new communication systems with high data rates, low costs, efficiency, and simplicity [ 1 ]. A viable choice for these systems is the fifth generation (5G) of communication technology [ 2 , 3 ].…”