WiMAX Antenna Research Articles

Isolation enhancement of the F-shaped four-port MIMO antenna for WiMAX, Wi-Fi, WLAN and ISM band applications using dielectric material

In this article, an F-shaped four-port multiple-input multiple-output (MIMO) antenna is designed and analyzed. In the designed antenna for achieving high isolation, we introduced a novel isolation technique that appears like plus-shaped wall placed in between the antenna elements. The antenna is designed on a low-cost FR-4 epoxy substrate with total dimensions of 0.61 λ 0 × 0.61 λ 0 × 0.03 λ 0 (31 mm × 31 mm × 1.58 mm) where λ 0 is the free space wavelength at 5.8 GHz and experimentally verified. This MIMO antenna design covers operating the range of frequencies 5.47–6.20 GHz ( | S 11 | < − 10 dB) which provides a bandwidth of 730 MHz. In terms of performance, the proposed antenna achieves high isolation of < − 45.52 dB with an improved reflection coefficient of − 30.44 dB, a peak gain of 3.77 dBi and a radiation efficiency more than 82% across the entire operating band. Moreover, the achieved MIMO diversity parameters of the proposed antenna are envelope correlation coefficient < 0.005, diversity gain < 9.99 dB, mean effective gain < − 3 dB and total active reflection coefficient < − 10 dB in the operating band of frequency. The simulated and measured results show a good agreement between them. Finally, after analyzing the performance of the proposed MIMO configuration, we can say that this antenna is suitable for C-band, WiMAX, Wireless-Fidelity (Wi-Fi), Wireless Local-Area Network (WLAN), Bluetooth and Industrial, Scientific, & Medical (ISM) bands applications.

A compact dual band hexagon rectangular shaped monopole antenna for WIMAX and WLAN applications

This paper presents a compact dual-band hexagon-rectangular shaped monopole antenna for WiMAX and WLAN applications. The miniaturized size of the antenna being 29 × 38 × 0.8 mm3. The proposed antenna operates efficiently within two distinct frequency ranges: 2.7 GHz to 3.2 GHz and 4.0 GHz to 5.1 GHz, addressing the needs of both WiMAX and WLAN systems. The antenna achieves bandwidths of 16.67% and 25.58% for the respective frequency bands, ensuring reliable performance and wide coverage for high-speed wireless communication. The antenna design attains its nature and application as a result of the center hexagonal shaped cavity which creates the required dual bands.

Design and analysis of metamaterial inspired multiband, high gain superstrate patch antenna for military applications, WiMAX, and maritime mobile services

Design and analysis of metamaterial inspired multiband, high gain superstrate patch antenna for military applications, WiMAX, and maritime mobile services

Development of asymmetric feed MIMO antenna for Wi-MAX, WIFI applications

Development of asymmetric feed MIMO antenna for Wi-MAX, WIFI applications

Boosted arithmetic optimization algorithm with elite opposition-based pattern search mechanism and its promise to design microstrip patch antenna for WLAN and WiMAX

ABSTRACT This paper investigates the performance of a novel artificial intelligence optimization technique in terms of designing a small size antenna that can be used for WLAN and WiMAX applications. In this regard, a boosted version of the arithmetic optimization algorithm is constructed as a novel artificial intelligence optimization technique with the aid of pattern search and elite opposition-based learning mechanisms. The proposed boosted arithmetic optimization algorithm is demonstrated for its superior explorative and exploitative behavior using classical fixed-dimensional, multimodal, and unimodal benchmark functions. The performance of the boosted arithmetic optimization algorithm is then presented for a real-world engineering optimization problem. For the latter challenge, a small size antenna that can be used for WLAN and WiMAX applications is designed. The obtained simulation results show that a compact small-sized patch antenna operating at WLAN and WiMAX frequencies can successfully be designed with the proposed boosted arithmetic optimization algorithm. Comparative evaluation against the state-of-the-art shows that efficiency is increased significantly since a bandwidth increase of up to is achieved even with a more than reduction in size.

High gain circular slot MIMO antenna for Wi-Max and WLAN application with minimum ECC value

High gain circular slot MIMO antenna for Wi-Max and WLAN application with minimum ECC value

A low profile dual band dual C - shaped monopole antenna for Wi-Fi, WiMAX and WLAN applications

This article presents a low-profile dual-band, dual C-shaped monopole antenna designed for Wi-Fi, WiMAX, and WLAN applications. The simulated results demonstrate that the proposed antenna achieves a 10 dB return loss and an impedance bandwidth ranging from 2.3–3.0/2.5 GHz and 4.1–6.0/5.1 GHz. The antenna configuration consists of two Cshaped branches, one inverted to the other, along with a ground plane. This design enables the antenna to generate two resonant frequencies while maintaining good radiation patterns and gain characteristics. Simulations were conducted on an FR-4 Epoxy substrate, resulting in a compact, low-profile size of 38×26×0.8 mm3. The obtained impedance bandwidth is 28% for the 2.5 GHz frequency range and 37.25% for the 5.1 GHz frequency range. Additionally, the simulated gain is reported as 3.5 dBi for 2.5 GHz and 3.0 dBi for 5.1 GHz. The proposed antenna offers a compact size, dual-band operation, wide impedance bandwidths, and reasonable gain levels, making it well-suited for Wi-Fi, WiMAX, and WLAN applications. Its design ensures efficient performance, allowing reliable wireless communication in the desired frequency bands. With its small form factor, the antenna can be easily integrated into various devices while maintaining excellent radiation patterns and achieving the desired impedance matching. Overall, the proposed antenna presents a promising solution for dual-band applications in the wireless communication industry.

A novel design of ultra-wideband CPW-fed printed monopole antenna for Wi-MAX, WLAN and X-band rejection characteristics

A novel design of ultra-wideband CPW-fed printed monopole antenna for Wi-MAX, WLAN and X-band rejection characteristics

A miniaturized dual band U shaped monopole antenna for WiMAX and WLAN applications

This paper presents a novel microstrip-fed dual-band monopole antenna that is compact, low-profile, and suitable for WiMAX and WLAN applications. The antenna uses three strips joined together to create a U-shape, with the ground included to generate two resonances in the monopole antenna. The implementation of the three strips in the U-shaped monopole antenna significantly reduced its overall size significantly. Through simulation using the HFSS software, the antenna successfully achieved the desired resonant modes within specific frequency ranges suitable for WiMAX and WLAN applications. In addition, the antenna attained the desired impedance bandwidth at the resonant frequencies, enabling efficient performance within these frequency bands.

A dual‐band semi‐circular patch antenna for WiMAX and WiFi‐5/6 applications

SummaryA semi‐circular patch antenna (SCPA) is designed for WiMAX and WiFi‐5/6 communications. The footprint of the proposed SCPA is only 30 × 40 × 1.575 mm3, which is composed of a semi‐circular patch and a partial ground plane. The main strength of this work is that the estimated wide dual‐frequency span of 2.39–3.75 GHz and 5.39–7.18 GHz are contributed with two sharp resonances at 2.77 and 6.46 GHz, respectively. The proposed SCPA has been practically tested after fabrication. The measured results confirm that the designed antenna achieved the bandwidth necessity for WiMAX 1.5 (2.5–2.69 GHz), WiMAX 2 (3.4–3.6 GHz), WiFi‐5 (5.15–5.85 GHz) and WiFi‐6 (5.925–7.125 GHz). In the two resonance frequencies of 2.77 and 6.46 GHz, the designed antenna achieved a gain of 2.558 and 4.109 dB, respectively. In addition, the SCPA also manifests good radiation properties and achieves an average efficiency of more than 90%. A professional version of the 3D electromagnetic simulator is utilized to examine the effect of diffident parameters and model the tested antenna.

Tri-Strip Monopole Antenna for LTE, WLAN and WIMAX Communication Applications

In this study, a Tri-strip monopole antenna for LTE, WLAN, and WiMAX (Worldwide Interoperability for Microwave Access) applications is presented. This is because wireless apps do not need to connect to all working frequencies at once, improving functionality without requiring a larger antenna. For LTE, WLAN, and WIMAX applications, a tiny triple wideband coplanar waveguide-fed patch antenna with a defective ground structure is used. Gain and radiation patterns have improved, return loss has been examined, and parametric analysis has been offered for antenna optimization. Average gain through the band is reported to be 3.5 dB, while radiation efficiency for the model is observed to be 94% on average.

Parasitic Element Based Frequency Reconfigurable Antenna with Dual Wideband Characteristics for Wireless Applications

A Microstrip Frequency Reconfigurable circular patch slot antenna for switchable Bluetooth, WiMAX, WLAN, and satellite communication applications is analyzed and presented in this work. The optimized overall size of 47 mm x40 mmx1.6 mm is utilized in the design, and which can cover wide range of frequencies below 10 GHz. In the initial phase, different monopole antennas are designed with various shapes of same size and later parasitic patch elements has been added to those monopole antennas. The circular monopole driven element and parasitic element are connected with a PIN diode, and which reinforced in achieving frequency reconfigurability. The proposed antenna is resonating at various frequencies of 2.4 GHz, 4 GHz, and 8.4 GHz when the diode in ON condition and resonating at 3 GHz, 5.4 GHz, and 8.4 GHz when the diode is in OFF condition. The performance of the designed antenna prototype is scaled and differentiated with the results of simulation and found good matching with respect to performance characteristics.

Novel high-gain and compact UWB microstrip antenna for WIFi, WIMAX, WLAN, X band and 5G applications

Novel high-gain and compact UWB microstrip antenna for WIFi, WIMAX, WLAN, X band and 5G applications

Multiband PIFA antenna with Koch Fractal slot for GPS, LTE and WiMAX wireless communication systems

In this article, a five frequency band PIFA antenna for GPS (1.57 GHz), LTE (2.6 GHz) and WiMAX (3.17GHz, 4.1GHz, 4.83GHz) applications is presented. The proposed antenna consists of a PIFA antenna with a Koch fractal slot at the first iteration that was applied to all sides of a square located in the center of the radiating element. The radiating patch modification of the proposed antenna with the fractal slot made the antenna multiband and also contributed to miniaturize the proposed antenna compared to the initial form. The results presented in this work are carried out under the CST MWs software and compared to those obtained by the HFSS software where a good agreement was recorded. The proposed antenna has a gain ranging from 1.13dB to 6.01dB corresponding to the five frequency bands achieved.

An octagonal ultra-wideband double slit antenna for WiMAX and WLAN rejection

Abstract This article proposes a dual band rejected double slits-based planar octagonal microstrip antenna for Ultra-Wideband (UWB) applications. The antenna built by an edge trimmed partial ground and an octagonal microstrip patch with a horizontal and an inclined rectangular slit. The slits are made to remove the interfering frequency bands WiMAX and WLAN from UWB band. The designed antenna without slits operates on the frequency range 2.78–10.78 GHz with a fractional bandwidth of 119% which includes the UWB frequency band 3.1–10.6 GHz. The antenna with diagonal inclined slit notches the band 4.4–5.83 GHz which excluded WLAN frequency range and shift the starting frequency of UWB band to the right from 2.78 to 3.26 GHz. The antenna with both horizontal and inclined slits further shifts the starting frequency from 3.26 to 3.619 GHz, eliminating the WiMAX band. The excluded bands show the VSWR value greater than 2 dBi whereas the rest of the band has less than 2 dBi. The proposed antenna results in nearly omnidirectional radiation pattern, 6.2 dBi peak gain and 85% radiation efficiency.

Photonic band gap structure microstrip patch antenna for WiMAX and Wi-Fi application

Photonic band gap structure microstrip patch antenna for WiMAX and Wi-Fi application

Tri-Strip Monopole Antenna for LTE, WLAN and WiMAX Communication Applications

In this research, we present a Tri-strip monopole antenna for LTE, WLAN (Wireless Local Area Network) and WIMAX (Wireless interoperability for microwave access) Applications. This is due to the fact that wireless applications is not needed to connect all operating frequencies simultaneously, Which will effect improving functionalities without increasing size of antenna. A miniaturized triple wideband coplanar waveguide-fed patch antenna with the defected ground structure isused for LTE, WLAN and WIMAX applications. The proposed antenna with overall size of 40 mm×40 mm×1mm and the design simulation are carried on a Rogers RT/ duroid 5880 substrate using HFSS v.13.0 simulation software. The proposed antenna shows the gain of 9dB at notch band frequency therefore it is good for its working conditions. Moreover, the proposed antenna is fabricated with a new metamaterial approach by placing the unit cell we have observed the triple band notch characteristics and depth in resonant frequency. There is enhancement in gain and radiation patterns, return loss is analyzed and parametric analysis is presented for optimization of antenna. The average gain that is observed through the band is 3.5dB and the average radiation efficiency that is observed for the model is 94%.

A compact hybrid dielectric resonator antenna for multiband in wireless applications

This article exhibits the composite dielectric resonator antenna (DRA) for ISM band, Wi-Max and WLAN applications. The proposed DRA is aiming for speech signal and video transmission in the range of wi-max/WLAN. DRA’s are used in many digital signal processing applications because they are capable of locating signal sources. Microstrip feed line excites the exhibited structure. A circular dielectric resonator antenna with circular ring and cross shaped strip is designed to generate tri-band characteristics. The proposed antenna structure cover three different frequency bands, i.e. 1.85–2.5 GHz, 2.97–3.92 GHz and 4.821–5.9 GHz, with the fractional bandwidth of 30.1%, 27.5% and 20.9% respectively. An ISM band, Wi-max as well as WLAN are being utilized for correspondence of continuous traffic including speech signal, video and information to supervise medical issues in wireless body area networks (WBAN) advancement. To strengthen the resonator appearance as well as miniaturize the volume, the customized circular metallic component and cross shaped strip are stacked onto the substrate. The simulated results are verified by using fabricated antenna and the results are compared. The proposed model is strongly encouraging the wireless applications.

A Compact Dual Notch Frequency Reconfigurable Antenna for WIMAX,DSRC, RADAR and Ku band Communication Applications

A frequency reconfigurable ultra-wide band antenna with dual notch bands is proposed in this paper. PIN diodes are located on ultra-wide band monopole antenna and are investigated for frequency reconfigurable characteristic of the proposed antenna. Multi-bands and narrow bands have been achieved by different combinations. Proposed antenna is fabricated on FR-4 substrate of dimensions 37 x 40 x 0.8mm3. For the successful combinations, antenna performance parameters like S11 characteristics, surface current distribution, peak gain, radiation efficiency and 2D radiation patterns are analyzed and illustrated in the paper. Peak gain of 4.83dB is obtained in operating band for D1, D2= 0, 1 combination. Radiation efficiency is not less than 70% in the entire operating bands. Results are analyzed experimentally for validating proposed antenna. Simulation based results and measured results are in good agreement.

New compact MIMO antenna for 5G, WiMAX and WLAN technologies with dual polarisation and element diversity

New compact MIMO antenna for 5G, WiMAX and WLAN technologies with dual polarisation and element diversity