High Gain Microstrip Antenna Research Articles

High Gain Microstrip Antenna with Optimized Radiation Patch Featuring Multiple Slits and a Triangular Slot

High Gain Microstrip Antenna with Optimized Radiation Patch Featuring Multiple Slits and a Triangular Slot

Wide band and high gain microstrip antenna using planar series array 4×2 element for 5G communication system

The 5G communication system requires an antenna as a receiving device that has high performance including wide bandwidth and high gain. Microstrip antennas have advantages such as low cost, suitable for high frequencies and easy to integrate with other devices. One of the disadvantages of microstrip antennas is their narrow bandwidth and low gain. Therefore, microstrip antennas with wide bandwidth and high gain are especially needed to support 5G communication systems. This paper provides a solution by proposed a wide bandwidth and high gain microstrip antenna operating at a resonant frequency of 3.5 GHz for a 5G communication system. The proposed antenna was developed in four stages starting from a single element, a two-element series array, a 4-element series array and a 4×2-element planar series array. A series planar array technique is proposed to increase the gain and bandwidth of the microstrip antenna simultaneously. In this paper, simulations and measurements from the proposed antenna are displayed and compared comprehensively to show the performance improvement from each stage of the development of the proposed model. Based on the measurement results, the designed antenna has an impedance bandwidth (IBW) of 0.6 GHz and fractional bandwidth (FBW) of 17.14 % with a frequency range of 3.11–3.71 GHz and maximum gain of 12.2 dB at a resonant frequency of 3.5 GHz. The bandwidth and gain of the antennas increased by 205 % and 99.03 % compared to single element antennas, respectively. Therefore, the proposed antenna can be recommended to be used as a receiving antenna for 5G communication systems

Design of Rectangular Patch Antenna on the Hilbert Fractal-shaped High Impedance Surface

The high Impedance Technique has emerged as a modern approach for high-gain microstrip antennas. A high impedance surface minimizes surface waves and provides increased gain. Instead of, a typical mushroom to design High Impedance Surface (HIS), fractal geometry can be used. Hilbert curve-based Fractal geometry minimizes physical length and keeps electrical length the same. In this work, three iterations of Hilbert curve-shaped HIS geometry are studied with emphasis on HIS application. Fractal facilitates multi-frequency operation from GSM 1800 MHz to 6 GHz Wireless applications. The antennas have a peak gain of 5.3 dbi. The simulation is conducted in HFSS, and the analysis is performed using reports like reflection coefficients, radiation patterns, and gain plots

Dual-band high-gain microstrip antenna with a reflective focusing metasurface for linear and circular polarizations

This paper proposes a dual-band high-gain microstrip antenna with a reflective metasurface (MS). The initial designed coaxial-fed laminated microstrip antenna can realize linear polarization (LP) radiation at the lower frequency of 5 GHz and circular polarization (CP) radiation at the higher frequency of 11 GHz, with a relatively low gain of about 5.8 dBi and 5.4 dBic, respectively. To enhance the radiation performance of the microstrip antenna, a reflective focusing MS is proposed, which can focus LP and CP waves at 5 GHz and 11 GHz, respectively. The MS antenna system is constructed by placing the initially designed microstrip antenna on the focal point of the reflective focusing MS, which can achieve the high-gain performance of 13.4 dBi for the LP radiation at 5 GHz, and 18 dBic for the CP radiation at 11 GHz, respectively. The proposed MS and feed antenna were designed and fabricated, and the experimental data were consistent with the simulation results, which verifies the feasibility of the proposed scheme. The proposed reflective focusing MS antenna could provide potential application in the modern wireless communication system.

Design of ferrite-based broadband high gain microstrip antenna

Design of ferrite-based broadband high gain microstrip antenna

A Gain-Enhanced Patch Antenna With a Periodic Microstrip Rampart Line

In this paper, a gain-enhanced patch antenna with a periodic microstrip rampart line is proposed. The periodic microstrip rampart line can modify the effective dielectric constant of the dielectric plate, and help to improve the gain of the traditional microstrip patch antenna. Based on the antenna design principle, a formula for calculating the gain-enhanced frequency point is proposed. A proposed high gain microstrip antenna is designed, fabricated and tested. The experimental results demonstrate that the gain of the proposed antenna reaches 10.0 dBi, which is 2.55 dB or 79.9% higher than that of the traditional patch antenna at the same operating frequency of 5.8 GHz. The measured and simulated results show a high consistency.

Ultra-light-weight kevlar/polyimide 3D woven spacer multifunctional composites for high-gain microstrip antenna

Ultra-light-weight kevlar/polyimide 3D woven spacer multifunctional composites for high-gain microstrip antenna

A dual-band high-gain microstrip antenna with a defective frequency selective surface for wireless applications

A dual-band high-gain linearly polarized antenna for wideband operation using a defective frequency selective surface (DFSS) is proposed and demonstrated experimentally. The designed antenna consists of radiating patch, truncated ground with a half-inverted L-shaped rectangular ring and frequency selective surface (FSS) with a defective ground plane. The dimensions are optimized to achieve dual band with a 10-dB impedance bandwidth of 7.72% from 2.37 to 2.56 GHz and 46.75% from 4.60 to 7.41 GHz. The antenna gain is enhanced by 8.8 dBi at lower band and 4.5 dBi at upper wideband. The maximum gain achieved using this technique is 8.8 dBi at 2.4 GHz. The measured and simulated results of the proposed antenna are well-matched in terms of gain, reflection coefficient (S11) and radiation patterns. The Proposed antenna is easy to implement, low cost, low profile and can be used in wireless services like Wi-Fi, Wi-MAX and C band applications.

Compact High Gain Multiband Antenna Based on Split Ring Resonator and Inverted F Slots for 5G Industry Applications

This paper presents the design, optimization, fabrication, and measurement of the compact high gain microstrip antenna with a split ring resonator and set of inverted-F slots along with a matching stub for sub-6 GHz5G applications. In this investigation, different iterations are visualized by incorporating inverted F slots, a split ring resonator, and a matching stub in the transmission line. The advantages of each incorporated structure are analyzed, and a hybrid antenna consisting of the combination is proposed as a final antenna configuration with the optimum results. The proposed final design attains compactness and multi-band operation. Impedance matching is improved by using the stub matched technique at the feed line. The designed antenna shows the resonances at precisely 2.1 GHz, 3.3 GHz, and 4.1GHz. The proposed antenna is suitable for mobile cellular communication such as the LTE band (2.1 GHz), n78 band (3.3 GHz), and n77 band (4.1 GHz) of 5G bands. The gain retrieved from each band attains more than 5 dB value.

Dual wideband and high gain microstrip antenna for wireless system

In this paper dual wideband high gain circular shaped microstrip antenna with modified ground plane is presented for wireless communication systems. The overall dimension of the proposed antenna is 50 x 40 x 1.6 mm3. The radiating element consists of circular shaped patch which is excited by microstrip feed-line printed on FR4 epoxy substrate. The ground plane is on the other side of the substrate having a rectangular ring shape to enhance the peak gain of the antenna. The proposed antenna exhibits two wide fractional bandwidths (based on ? -10 dB) of 61.1% (ranging from 2.0 to 3.8 GHz, centred at 2.88 GHz) and 53.37% (ranging from 5.48 to 9.6 GHz, centred at 7.44 GHz). The measured peak gain achieved is 8.25 dBi at 8.76 GHz. The measured impedance bandwidth and gain suffice all the commercial bands of wireless systems such as 4G LTE band-40, Bluetooth, Wi-Fi, WLAN, WiMAX, C-band, and Xband. The measured results are experimentally tested and verified with simulated results. A reasonable agreement is found between them.

A high gain microstrip antenna based on substrate integrated waveguide technology for modern wireless communication

An antenna based on a Substrate Integrated Waveguide (SIW) is proposed in this paper as suitable for modern wireless applications. The presented antenna is formed of two elements; an active and a passive. The active element is directly connected to the feeding line while the passive element, which consists of three segments, is energised by coupling with the active element by a means of a gap. Dimensions of each segment is 3.63 × 19.5 mm2. It was found that the antenna resonates at 16.98 GHz and has an impedance bandwidth of 985 MHz with a reflection coefficient of -35 dB. An overall gain of 9.44 dBi was further achieved with a total area of 30 × 23.5 mm2. A substrate of Rogers Duroid 5880 with relative permittivity of 2.2 and thickness of 0.787 mm is adopted for the design of this antenna. Designing and simulating the antenna accomplished using the Microwave Studio Suite of Computer Simulation Technology (CST) simulator.

A High Gain Microstrip Antenna Based on Substrate Integrated Waveguide Technology for Modern Wireless Communication

A High Gain Microstrip Antenna Based on Substrate Integrated Waveguide Technology for Modern Wireless Communication

Metasurface Loaded High Gain Antenna based Microwave Imaging using Iteratively Corrected Delay Multiply and Sum Algorithm

In this paper, the design consideration is investigated for a cylindrical system with low-cost and low-loss dielectric materials for the detection of breast tumor using iteratively corrected delay multiply and sum (IC- DMAS) algorithm. Anomaly in breast tissue is one of the most crucial health issues for women all over the world today. Emergency medical imaging diagnosis can be harmlessly managed by microwave-based analysis technology. Microwave Imaging (MI) has been proved to be a reliable health monitoring approach that can play a fundamental role in diagnosing anomaly in breast tissue. An array of 16 high gain microstrip antennas loaded by Index Near-Zero (INZ) metasurfaces (MS), having the impedance bandwidth of 8.5 GHz (2.70–11.20 GHz) are used as transceivers for the system. The MS is used to increase the electrical length of the signal that results in the gain enhancements. The antennas are mounted in a cylindrical arrangement on a mechanical rotating table along with a phantom mounting podium. A non-reflective positive control switching matrix is used for transmitting and receiving microwave signals. A set of lab-made realistic heterogeneous breast phantoms containing skin, fat, glandular, and tumor tissue dielectric properties in individual layers are used to verify the performance of the proposed technique. The control of the mechanical unit, data collection, and post-processing is conducted via MATLAB. The system can detect multiple tumor objects. The imaging results and numerical Signal to Mean Ratio (SMR) values of the experiment validate the system efficiency and performance that can be a viable solution for tumor detections.

Novel Design of Microstrip Patch Antenna based on Two-Shape Structure

      Recently, most of researches concentrate on design broadband and high gain microstrip antenna with a low profile to fulfill modern communication system requirements. This paper presents a novel design of microstrip patch antenna. The design is based on the number two (Two-Shape) shape using the Computer Simulation Technology (CST) microwave studio.  The novel design is operated at the X-band frequency, and it provides a very wide bandwidth which is around 25 % at the center frequency 10.25 GHz. The antenna realized gain fluctuates between 5.3-7.7 dBi over the entire X-band frequency. The antenna provides a Fan- beam radiation patterns with very low side lobe levels, which are below -10 dB in both of the E- and H-planes. Due to the simplicity and compatibility, it is believed the antenna could be of interest to the radar applications.

Ferrite ring loaded hybrid substrate design for gain enhancement of linearly and circularly polarized microstrip antennas

New design of compact high gain microstrip antennas (MSAs) by loading ferrite ring in the substrate has been proposed in this article. Gain enhancement in two compact wideband MSAs, one exhibiting linear polarization and the other featuring circular polarization, is demonstrated using hybrid substrate. The proposed hybrid substrate is a combination of Roger's 6002 (εr = 2.94, tan δ = 0.0012) and Ferrite ring having εr = 10, μr = 14, dielectric loss tangent tan δe = 0.0017 and magnetic loss tangent tan δm = 0.0391. This ferrite ring loaded composite antenna results in a peak gain enhancement of about 4.46 dBi in a linearly polarized E-shaped MSA having bandwidth of 17.9%. In a similar fashion, a peak gain enhancement of about 3.61 dBi is exhibited on a standard dual-fed circularly polarized square MSA (S-MSA). Both E-shaped MSA and S-MSAs are fabricated and characterized for impedance and radiation pattern measurements exhibiting good corroboration with the simulated results.

Design and Implementation of a High Gain Microstrip Antenna Using Antenna Array

Design and Implementation of a High Gain Microstrip Antenna Using Antenna Array

Design and Implementation of a High Gain Microstrip Antenna Using Antenna Array

Design and Implementation of a High Gain Microstrip Antenna Using Antenna Array

Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

This paper proposes a high gain microstrip antenna with circular polarization for LTE applications at a working frequency of 2300 MHz. Gain of antenna is optimized by using an array method with 4 elements arranged in plannar using feed line of 50 Ohm, 100 Ohm and 70.7 Ohm. The proposed antenna designed using FR-4 substrate with (ɛr) = 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. Gain of antenna can be optimized by increasing the number of elements in the array of the antenna. Circular polarization can be obtained by cutting the edge of a rectangular patch antenna with an angle of 45° . From the simulation results obtained reflection coefficient value of -20.02 dB and VSWR of 1.22 at the working frequency of 2300 MHz. The gain of proposed microstrip antenna is 10.56 dB with an impedance bandwidth value of 714 MHz (1925 - 2639 MHz). The proposed antenna obtained a circular polarization with axial ratio of 1.745 dB at working frequency of 2300 MHz. Array method with four elements increased the gain of antena until 45.07% compared to the single element antenna.

A Systematic Analysis and Design of a High Gain Microstrip Antenna based on a Single EBG Layer

In this paper, an Electromagnetic Band Gap (EBG) lens of a single layer is invented to improve the gain of a truncated slotted square patch antenna for the Wi-Fi applications. The proposed EBG lens is structured from 55 planar array. The individual unit cell is basically shaped as a couple of a split concave conductive patch. The proposed EBG struc- ture performance is tested numerically using Finite Integration Technique (FIT) formulations of CSTMWS and analytically using circuit theory. Then, the antenna performance in terms of |S11|, the boresight gain, and radiation patterns are reported and compared to the performance before introducing the EBG lens to identify the significant enhancements. The proposed EBG antenna is simulated numerically inside FIT formulations of CSTMWS time domain (TD) solver. A significant gain enhancement of 11.1 dBi at 2.45 GHz and a front to back ratio (F/B) about 22 dB are achieved after introducing the EBG lens. The antenna performance is validated using a frequency domain (FD) solver based CSTMWS formulations to obtain excellent agreements between the two invoked methods.

High-gain low-cost microstrip antennas and arrays based on FR4 epoxy

In this work, two previously reported low-cost design techniques for high-gain microstrip antennas are compared based on detailed parameter study. Both of these methods exploit a combination of a spacer and a layer of FR4 epoxy. The distinguishing feature of the said methods is the position of the metallization. A parameter study is performed on the thickness of the FR4 layer and its effect on the antenna gain, efficiency and pattern symmetry is reported. Capability of these methods is designing high-gain arrays is studied and specific design examples are provided. It is shown that the first method has superior performance in the sense of gain and efficiency. Especially, the first method supersedes the second one for high-gain arrays. As well, it is shown that the first method is a pure microstrip alternative to another previously reported technique wherein a CNC milled waveguide structure is exploited as the feed network.