Dual-band Microstrip Patch Antenna Research Articles

A 2.4-7GHz Dual Band Microstrip Patch Antenna (DBMPA)

We designed a 2.4-7GHz dual-band microstrip patch antenna DB-MPA using electromagnetic field simulation and transmission characteristic (S21) measurements. Optimizing the slot length of the patch surface increased the directional antenna gain at 7 GHz by 3.5 dB compared to 2.48 GHz, reducing the effect of the higher spatial propagation loss of 9 dB at 7 GHz. A transmission system simulation with an antenna component model incorporating S21 data measured with the 2.4-7GHz DB-MPA from 1 to 8 GHz was conducted at a spatial propagation distance of 5 to 40 m to verify the practicality of the 2.4-7GHz DB-MPA

Design of an enhanced dual-band microstrip patch antenna with defected ground structures for WLAN and WiMax

This research presents an innovative dual-band microstrip patch antenna design enhanced with defected ground structures (DGS) and barium strontium titanate (BST) thin film, tailored for wireless local area network (WLAN) and WiMax applications. The first design phase involved the development of an microstrip patch antenna (MPA) using an flame retardant (FR4) substrate with a permittivity (εr1) of 4.3 and a thickness of 1.524 mm, enhanced with DGS. This configuration achieved a single-band resonance at 4.1 GHz, with a bandwidth of 0.82 GHz and a return loss (S11) of -32 dB. The second phase involved the integration of a BST thin film, with a high permittivity(εr2) of 250 and a thickoness of 0.1 mm, into the DGS-enhanced microstrip patch antenna (MPA). This mdification led to a transformation in the antenna's performance, enabling dual-band operation at resonance frequencies of 2.8 GHz and 5.8 GHz. Further, there was a corresponding substantial increase in bandwidth to 1.34 GHz and 1.25 GHz, respectively, an improvement in S11 values to -16.3 dB and -21.4 dB. Moreover, and antenna’s size of 14×10×1.524 mm<sup>3</sup> . The study underscores the critical role of innovative material use and design optimization in advancing antenna technology, offering significant enhancements in bandwidth, and miniaturization, for wireless communication systems.

Design and Analysis of a Dual-Band Microstrip Patch Antenna for Sub-6 GHz Applications

This paper explores the design, simulation, and analysis of a dual-band Microstrip patch antenna designed to operate efficiently at frequency ranges of 3.32 GHz - 3.62 GHz and 4.72 GHz - 6.83 GHz, utilizing Ansys High-Frequency Structure Simulator (HFSS) software. The primary objective is to enhance performance metrics such as bandwidth, gain, and radiation efficiency to meet the requirements of applications necessitating concurrent operation at both frequency bands. The study involves a comprehensive design, iterative simulation, and detailed analysis using Ansys HFSS, with customized design considerations aimed at optimizing performance for modern wireless communication systems. The research was conducted in a simulated environment over a period that included iterative design processes, multiple simulation runs, and thorough analysis phases. Methodologically, the study focused on iterative design refinement to improve key performance parameters such as reflection coefficient, gain, radiation efficiency, Voltage Standing Wave Ratio (VSWR), and relative permittivity at the specified frequency bands. Results indicate that at 3.32 GHz - 3.62 GHz, the antenna achieves a reflection coefficient of -5 dB, a gain of 2.77 dB, a radiation efficiency of 0.7429, and a VSWR of 1.9299. At the higher frequency range of 4.72 GHz - 6.83 GHz, the antenna exhibits a reflection coefficient of -20.5213 dB, a gain of 3.34 dB, a radiation efficiency of 0.7, and a VSWR of 1.2203. These findings underscore the antenna's capability to deliver improved performance metrics across both frequency bands. In conclusion, the dual-band Microstrip patch antenna designed and analyzed through Ansys HFSS demonstrates significant potential for use in contemporary wireless communication systems, offering enhanced bandwidth, gain, and radiation efficiency suitable for multi-frequency applications.

Slot-loaded Dual-Band Microstrip Patch Antenna for 5G and WLAN/WiMAX Wireless Applications

Objectives: This study introduces a dual-band rectangular microstrip patch antenna with a slot-loaded, specifically designed for 5G and WLAN/WiMAX applications. Method: The antenna is mounted on a substrate material of Rogers AD255C material having εr of 2.55 and a thickness of 1.56 mm. Three slots are etched on the conventional rectangular microstrip patch antenna. A 50-ohm microstrip line powers the antenna. The antenna that has been suggested is created and simulated using CST Studio Suite 2020. Findings: Based on numerical simulation, the proposed antenna functions at 3.5 GHz and 5.8 GHz, suitable for 5G and WLAN/WiMAX wireless technologies. The antenna offers measured return loss (S11) of -22.10 dB and -22.9 dB and a Gain of 4.43 dBi and 4.62 dBi at 3.5 GHz and 5.8 GHz, respectively. The radiation patterns are linear and broadside. Novelty: This article aims to create a smaller planer dual-band antenna that integrates WLAN/WiMAX and 5G communication standards into a single device. Keywords: Dual-band, 5G, WLAN, WiMAX, Microstrip patch antenna

Low-Profile Dual-Band Microstrip Patch Antenna With Shorting Pins

Low-Profile Dual-Band Microstrip Patch Antenna With Shorting Pins

Design of High Performance Dual-band Microstrip Patch Antenna for Wi-Fi Applications

Micro strip antennas are low-profile occupies less space and requires less power. A metal patch mounted at a ground level with a di-electric material in-between constitutes a Micro strip or Patch Antenna. In this paper, it is proposed to design a Microstrip patch antenna operating at 2.4 GHz and 5.8 GHz frequencies. The primary aim is to create a compact, easily fabricated, and high-performance antenna. It is proposed to incorporate a copper patch with strategically placed slots on an FR-4 substrate, along with a 50Ω microstrip feed line. In this paper, it is proposed to measure the VSWR, Return loss, Directivity and radiation pattern of the proposed antenna. It is proposed to design this antenna using CST Microwave studio software. Top of Form Keywords: Microstrip Patch Antenna, Wi-Fi, Dual-Band, 2.4/5.8 GHz, CST Simulation

A Dual-Band Low SAR Microstrip Patch Antenna with Jean Substrate for WBAN Applications

This paper presents a low-profile dual-band microstrip patch antenna operated at the 2.45/5.8 GHz ISM bands, targeting wireless body area network (WBAN) applications. The proposed antenna is fabricated on a jean substrate measuring 74×82 mm2. The four corners of the conventional rectangular patch are cut to activate an additional operating frequency and to enhance the radiation pattern. The circular slot is added to the radiating patch to fine-tune the desired frequencies. The measured impedance bandwidth of the proposed antenna at 2.45 GHz and 5.8 GHz bands is 3.68% (2.40 GHz–2.49 GHz) and 3.81% (5.67 GHz–5.89 GHz), respectively. The measured maximum gains are 3.08 dBi at 2.45 GHz and 2.15 dBi at 5.8 GHz. Moreover, the antenna’s performance when placed on flat and rounded body surfaces is also investigated. The proposed antenna achieves stable radiation pattern and low specific absorption rate (SAR) value with low complexity in design. The results indicate that the proposed antenna can be a promising candidate for WBAN applications.

EARTHEN LAMP-SHAPED DGS DUAL BAND MICROSTRIP PATCH ANTENNA FOR HIGH RETURN LOSS IN BIOMEDICAL APPLICATION

This study illustrates a dual-band circular and pentagon antenna with dual-band configuration for the high return loss. When an antenna has a greater return loss, less power is reflected toward the transmitter, implying that the antenna and transmission line are better suited. Due to its accessibility, the FR4 substrate is used to replicate the design. With a bandwidth of 150 MHz and 200 MHz, respectively, the antenna's dual-band performance is between 2.32 GHz to 2.47 GHz and 2.9 GHz to 3.1 GHz. The body phantom design in CST Studio is used to test the design's biocompatibility. It is demonstrated by the improved antenna in the industrial, scientific, and medical (ISM) band region that it can be utilized for telemetry or medical services.

Development of a Dual-Band Microstrip Patch Antenna with Rectangular Slot for Next-Generation 12-35 THz Applications

Development of a Dual-Band Microstrip Patch Antenna with Rectangular Slot for Next-Generation 12-35 THz Applications

Dual-Band Dual-Polarized Microstrip Patch Antenna With Parasitic Elements for 5G Antenna-in-Package Design at Millimeter-Wave Frequencies

Dual-Band Dual-Polarized Microstrip Patch Antenna With Parasitic Elements for 5G Antenna-in-Package Design at Millimeter-Wave Frequencies

Modified E-Shape Rectangular Microstrip Patch Antenna with DGS for Wireless Communication

A modified E-shape dual bands rectangular microstrip patch antenna for wireless applications is presented in this paper. An E-slot Microstrip patch antenna with a defective ground structure method has been proposed and getting two bands at 1.9 GHz and 2.89 GHz with S11 -10dB. Defective ground structures provide a maximum gain and low insertion loss i.e., a gain of 3.16 dB, voltage standing wave ratio less than 2, and insertion loss less than -10 dB for both bands. The size of the antenna is 46.83mm x 38.41mm x 1.676mm, which is compact in term of size. The dual band microstrip patch antenna exhibits low cost. The simulation's outcome closely resembles the actual printed antenna and applicable for WiMAX application. The antenna was designed using the Computer Simulation Technology (CST) software and printed on FR-4 substrate.

Rectangular Dual Band Microstrip Patch Antenna with Defected Ground Plane Using CST STUDIO

Abstract: The rectangular dual-band microstrip patch antenna with defected ground plane for wireless communications that operates at 2.4-3.5 GHz. The antenna incorporates a rectangular patch with slot. The dielectric substrate used for antenna is RT Duroid 5880. According to position of etched slot are determined using parametric such as s-parameters and radiation pattern are simulated. The analyses are performed using CST STUDIO SUITE 2019.

Mutual Coupling Reduction of a Dual-Band Four-Port Patch Antenna With Co-Polarized Radiation Pattern by Controlling Electric Fields

In this paper, a novel design approach to decrease the mutual coupling (MC) of a single dual-band four-port microstrip patch antenna (MPA) with a co-polarized radiation pattern is proposed via characteristic mode analysis. Initially, the traditional MPA under mode 1 to mode 4 is theoretically studied. This proves that the four modes maintain a high MC of approximately -2 dB. To address this issue, shorting pins 1 and pins 2 are inserted below the radiator, leading to a more than 12 dB MC reduction between the two ports along the x-axis. After that, the MC between the two ports along the y-axis is deeply studied. This proves that the electric field nulls of the MPA could be moved near unexcited ports and reduce the MC by combining mode 1 with mode 2 (or mode 3 with mode 4). Hence, shorting pins 3 are loaded for mode combination and low MC. In addition, shorting pins 4 are loaded to reshape the radiated fields in the upper band. Moreover, the impedance matching and bandwidth are improved by cutting the ring slots. Finally, a four-port MPA is fabricated and tested. The results show that it has satisfactorily gained a low MC of below -15 dB between the four ports in dual bands. Meanwhile, it holds low-profile, single-layer, single-element, and co-polarized radiation pattern properties.

Design of Dual Band Microstrip Patch Antenna for 5G Communication Operating at 28 GHz and 46 GHz

Design of Dual Band Microstrip Patch Antenna for 5G Communication Operating at 28 GHz and 46 GHz

A Dual-band T-slot Microstrip Patch Antenna for Wireless Communication and Radar Application

This paper presents a proposed a Dual-Band T-Slot Microstrip Patch Antenna for sub-6GHz 5G application. The proposed antenna is designed to operate at two frequency bands of 5.923 GHz and 7.444 GHz respectively. The size and feed technique are determined by design formulas. The simulation results show a good return loss (reflection coefficient) of -33.696 dB and -18.464 dB respectively which is way below the benchmark of 10dB. The gain and VSWR results are 5.45dB and 1.049 at 5.933GHz; 4.158dB and 1.272 at 7.443GHz respectively. The CST software is used for the simulation.

A Low-Cost and Dual band Microstrip Patch Antenna for Ku and K Band Applications

This paper examines a dual-band, low-cost microstrip patch antenna for Ku and K applications through simulation study. Ansys High Frequency Structure Simulator (HFSS) software is used to do the simulation analysis of the suggested antenna. Using Ansys High Frequency Structure Simulator (HFSS) software, the suggested antenna is constructed and simulated to evaluate several characteristics including reflection coefficient (S11), radiation pattern, gain, and bandwidth. The substrate for the antenna is made of FR-4, which has a relative permittivity of 4.4 and a dielectric loss tangent of 0.02. Using the microstrip feed line technology, the planned millimeter wave dual band antenna is examined at operating frequencies of 13 and 22 GHz. At frequencies of 13 and 22, respectively, the antenna's maximum gain values are 4.81 dB and 4.82 dB in the x-y plane. The suggested material might be a decent substitute.

Design of a Taiji-like Dual-band Microstrip Patch Antenna Loaded with Bagua Parasitic Patch

This study proposes a Taiji-shaped microstrip patch antenna without affecting its size and design complexity. The radiation patch adopts a Taiji-like shape design, and the traditional Chinese Bagua-shaped parasitic element is loaded on the periphery of the radiation patch on the surface of the dielectric substrate to optimize the impedance matching further and improve the gain. The software HFSS15.0 is used to simulate the antenna and compare the results. The results show that the antenna achieves dual-band characteristics at 2.45GHz and 5.04GHz, has an impedance bandwidth of 110MHz and 250MHz, and has a positive gain of 7.13dB. The proposed antenna is suitable for the field of wireless communication.

Computer-Aided Diagnosis of Muscle Mass through Antenna as a Sensor

Wireless body area network (WBAN) incorporates a wireless sensor network and wearable devices in miniature size. In this paper, a dual-band microstrip patch (DBMSP) antenna as a sensor with a modified split ring resonator (SRR) and defective ground structure (DGS) is proposed for muscle mass measurement and prediction. Modified SRR on the ground plane forms a defected ground structure (DGS) for back radiation reduction and suits muscle mass measurement. The proposed dual-band microstrip patch antenna resonates at 5.2 GHz and 8.4 GHz, with impedance bandwidth of about 0.9 GHz and 1.89 GHz, input reflection coefficient is about -21.12 dB and -14.5 dB, respectively. This DBMSP antenna has an efficiency of 99.9%, with a negligible amount of specific absorption rate (SAR). From the proposed DBMSP antenna sensor, muscle mass is predicted from human muscle. The proposed antenna is fixed on the ventral surface of the forearm and biceps. DBMSP antenna sensor detects electromagnetic energy from muscle tissues under radiating near-field conditions. The muscle tissue signal is acquired through the proposed DBMSP antenna. The acquired antenna process with nondecimated wavelet transform (NDWT) and discrete wavelet transform (DWT) algorithms for noise reduction. Further, early prediction of muscle mass prevents humans from lack of protein and oxygen levels in the blood and avoids major issues in human health. The proposed DBMSP antenna-based muscle mass measurement achieves 89% accuracy when compared with laboratory measurement.

A multi-band MIMO antenna system with coupled-fed modified rectangular patch elements for 5G systems

A four-port multiple input multiple output (MIMO) antenna system constructed of four compact dual-band (38/60 GHz) microstrip patch antennas is proposed for 5G mobile applications. Each individual element is optimized to achieve the desired performance of the overall MIMO system. Numerical and experimental investigations are achieved to assess the performance of both the single-element antenna and the four-port MIMO antenna system. It is shown that the simulation results agree with the experimental measurements, and both show good performance of the proposed MIMO antenna system. The bandwidths achieved around 38 GHz and 60 GHz are about 2 GHz and 3.2 GHz, respectively. The performance of the MIMO antenna system including the return loss at each antenna port and the coupling coefficients between the different ports are investigated. The radiation patterns produced when each port is excited alone are shown to be suitable for spatial diversity scheme. They have a high radiation efficiency exhibited by a balloon-like shaped radiation pattern for both the upper and lower frequency bands. It is shown that the envelope correlation coefficient (ECC) and the diversity gain (DG) are suitable for performance for the targeted 5G bands.

Design of a high-gain dual-band LI-slotted microstrip patch antenna for 5G mobile communication systems

The microstrip patch antenna has been successfully used in modern wireless communication systems including the fifth generation (5G) applications. The focus of this paper is on the high-band millimeter waves of the 5G, particularly the 26 and 28 GHz as widely used frequency bands. The main goal of this study is to provide a significant improvement in the microstrip patch antenna gain by adding slots with L and I shapes to a single rectangular patch, being very common structure used in 5G antennas. It is worth noting that this is an empirical study carried out using the CST Studio Suite simulator for simulating and optimizing the slot dimensions. The results presented in the paper show that a very high gain could be achieved by inserting a couple of symmetric LI slots and a rectangular slot located in the middle. To validate our results, the paper presents a detailed comparison between the proposed and previously developed microstrip patch antennas, and demonstrates that the proposed ones outperform the others in achieving high gain and directivity while providing great Voltage Standing Wave Ratio (VSWR) and efficiency measures, and wide enough bandwidth at the two frequency bands selected.