GHz Microstrip Antenna Research Articles

Review and Design of a Simple 60 GHz Microstrip Antenna for Enhanced 5G Performance

Review and Design of a Simple 60 GHz Microstrip Antenna for Enhanced 5G Performance

A Compact Hook-Shaped 3.5 GHz Microstrip Antenna for 5G Applications

A Compact Hook-Shaped 3.5 GHz Microstrip Antenna for 5G Applications

2.4 G HZ MINIATURISED RECTANGULAR MPA WITH DEFECTED GROUND AND PATCH

This study aimed to develop a miniaturised rectangular microstrip patch antenna with a resonance frequency of 2.4 GHz. In order to achieve this, an initial microstrip antenna's resonance frequency was shifted from 3 GHz to a lower frequency by employing a defective ground structure (DGS) with a triangular-shaped slot into the ground plane. Also Triangular ring slots used defect the patch to improve co- and cross-polarization separation. Finally, a successful downsizing of up to 28% along the length and 18% along the width of the patch is achieved compared to the traditional 2.4 GHz microstrip antenna. The findings of the experiments have been obtained using high-frequency structure simulator software (HFSS). The substrate used in this work is RT/ Duroid 5880, which has a dielectric constant of 2.2 and a thickness of 1.575 mm.

Design and analysis of wideband sub-6 GHz microstrip antenna

In this work, design, analysis, and simulation of microstrip patch antenna for Sub-6 GHz application has been investigated. The research method is based on the Sonnet Suites software. The aim of the study was to design and analyze microstrip patch antenna for Sub-6 GHz antenna for 5G applications and usage. The antenna is designed with the help of using partial ground architecture. Design architecture consideration and analysis of different parameters and simulations were investigated. The antenna operates at 4.32 GHz and the results are compact design area of 21.5 x 36.9 mm2, reflection coefficient is of -18 dB, and the gain in the range from 4.30 to 4.32 dB.

Antenna 5.8 GHz dengan Output Perbedaan Fasa 90 Derajat Ganda Menggunakan Jaringan Matriks Butler Feeding

A complex design of electromagnetic feeding network circuit components is needed for a wireless communication network system, and expensive materials, especially for electromagnetic components at a high frequency of 5.8 GHz with dual 90-degree phase difference output using butler matrix Feeding Network for wireless communication network systems. It is novel in form and has a frequency-free, frequency-free, non-complex configuration of microstrip electromagnetic circuits, and uses inexpensive materials at a frequency of 5.8 GHz. This system is a package consisting of a 5.8 GHz microstrip antenna with a rectangular microstrip antenna array and a Butler matrix of four inputs and outputs to achieve a double 90-degree phase difference. The antenna uses a via hole for the transmission line to the network feeding system, has one band and shallow bandwidth with four ports, and has one working frequency, namely 5.58 GHz under the S criterion -10dB, and uses a via hole for the transmission line to the network feeding system, the radiation pattern is forward, the gain level is 6.83dB, and the feeding impedance is 50 Ohm. S11 -26.19 dB for the 90-degree hybrid coupler, S21 31.65 dB, S51 -26.18 dB, and S61 32.52 dB which means these are all working well, and the overall size of this structure is 80mm x 65mm with FR4 of 4.4 dielectric constant having 50 ohms.

Design of a 77GHz Microstrip Antenna with Electrically Large Property

In this paper, a 77GHz microstrip antenna with electrical large property (ELP) is designed and simulated by high-frequency simulation software HFSS. We obtain the ELP antenna by cutting a gap in the middle of the rectangular antenna to construct the interdigital capacitor. The theory of the ELP antenna is analyzed by the surface current distribution and the electric field distribution of it. Compared with the traditional rectangular antenna, the dimensional area of the antenna is increased by 2.245 times, and the antenna maintains a good radiation pattern. The parameters of the antenna which affect the electrically large characteristics are discussed. From the results, we can see that this antenna can better adjust the impedance matching than the traditional antenna.

Array Design of 300 GHz Dual-Band Microstrip Antenna Based on Dual-Surfaced Multiple Split-Ring Resonators.

To meet the increasing need of high-data-rate and broadband wireless communication systems, the devices and its circuits R&D under Millimeter, Sub-Millimeter, or even Terahertz (THz) frequency bands are attracting more and more attention from not only academic, but also industrial areas. Most of the former research on the THz waveband (0.1–10 THz) antenna design is mainly focused on realizing high directional gain, such as horn antennas, even though the coverage area is very limited when comparing with the current Wi-Fi system. One solution for the horizontally omnidirectional communication antenna is using the structure of multiple split-ring resonators (MSRRs). Aiming at this point, a novel 300 GHz microstrip antenna array based on the dual-surfaced multiple split-ring resonators (DSMSRRs) is proposed in this paper. By employing the two parallel microstrip transmission lines, different MSRRs are fed and connected on two surfaces of the PCB with a centrally symmetric way about them. The feeding port of the whole antenna is in between the centers of the two microstrip lines. Thus, this kind of structure is a so-called DSMSRR. Based on the different size of the MSRRs, different or multiple working wavebands can be achieved on the whole antenna. Firstly, in this paper, the quasi-static model is used to analyze the factors affecting the resonance frequency of MSRRs. Simulation and measured results demonstrate that the resonant frequency of the proposed array antenna is 300 GHz, which meets the design requirements of the expected frequency point and exhibits good radiation characteristics. Then, a dual-band antenna is designed on the above methods, and it is proved by simulation that the working frequency bands of the proposed dual-band antenna with reflection coefficient below −10 dB are 274.1–295.6 GHz and 306.3–313.4 GHz.

Development Of Circular Polarization 5.5 Ghz Microstrip Antenna E-Shaped For Synthetic Aperture Radar Communication

This paper presents development of circular polarization 5.5 GHz microstrip antenna E-shaped for synthetic aperture radar Communication. Microstrip antenna designed Truncated E-shaped the centered frequency is 5.5 GHz and bandwidth that is wide 200 Mhz for Synthetic Aperture Radar communication. The proposed antenna on 1.6 mm thickness of FR-4 substrate with the dielectric constant 4.6. The best simulated result can achieve -10dB reflection coefficient bandwidth 600 Mhz, VSWR 1,578, gain 5,67 dbiC and axial ratio 2,947 with left-handed circular polarization. The best measurement result can achieve -10 dB reflection coefficient bandwidth 951 MHz (5.304-6.255), VSWR 1,25, gain 6,17 dBiC with left-handed circular polarization.

A 2.45 GHz microstrip antenna with harmonics suppression capability by using defected ground structure

In this work, a microstrip patch antenna with an inset feed and defected ground structure (DGS) is designed at the resonant frequency of 2.45 GHz. The antenna is designed on a FR-4 substrate with a dielectric constant, εr of 4.5, loss tangent, tan δ of 0.019 and thickness, h of 1.6 mm. The technique of DGS is used to avoid the use of additional circuits in the antenna to suppress the harmonics. By introducing a single and additional slots DGS at both ends on the antenna ground plane, the proposed microstrip patch antenna is able to suppress the higher order harmonics. The reflection coefficient, S11 is -38.75 dB at 2.45 GHz. The proposed antenna have suppressed the higher order harmonics effectively from -38.04 dB to -2.61 dB at 4.54 GHz and from -13.08 dB to -1.38 dB at 5.76 GHz. The prototype of the antenna is fabricated for the verification of the design. The simulated and measured results are found to be in a good agreement.

A 24 GHz microstrip antenna array with large space and narrow beamwidth

AbstractA microstrip antenna array with large space and narrow beamwidth working at 24 GHz is presented in this paper. In some millimeter‐wave radar systems, it is often necessary for transmitting antenna with high gain and narrow beamwidth to avoid interference from other information. According to the theory of antenna array, when the number and spacing of the subarrays and the sidelobe level are given, the half‐power beamwidth can be basically determined. In previous studies, the subarray spacing of the transmitting antenna is usually taken as a dielectric wavelength λg. In this paper, under the condition that the number of subarrays is given and no grating lobe is generated, the half power beamwidth is further narrowed by increasing the subarray spacing. The final subarray space of the 12 × 8 antenna array is 11.5 mm, that is, 1.68 dielectric wavelength (λg), and the half power beamwidth of H‐plane is only 5.5°. The simulated and measured results are presented and discussed. Through processing and testing, it is proved that the antenna array has good performance and can be applied to 24 GHz automotive collision avoidance radar or 24 GHz perimeter security radar.

A linear-scaling technique for designing a THz antenna from a GHz microstrip antenna or slot antenna

With the increasing need for higher and higher bandwidth, wireless communication standards are moving towards higher frequencies. The fifth generation (5 G) wireless communication standards are already set to millimeter waves and the research trends are advancing towards exploring the terahertz (THz) frequencies. Most of the design methodologies for microstrip antennas and other communication devices are developed in the GHz frequencies already. In this paper, a novel linear-scaling technique is presented for bridging the years of research in microstrip and slot antennas in GHz frequencies to the future generation of THz antennas. The technique is analytically justified for a rectangular patch antenna and experimentally validated for a wide band slot antenna and a metamaterial based antenna with integrated filters.

2.4 GHz SQUARE RING PATCH WITH RING SLOT ANTENNA FOR SELF INJECTION LOCKED RADAR

Abstract: The radar network system requires high-cost frequency, the complex configuration component of the electromagnetic feeding network circuit to make four output antenna with the same power and different phase output specifically for SIL (Self Injection Locked) Radar, and inexpensive material, especially for the electromagnetic component. 2.4 GHz Square Ring Patch with Ring Slot Microstrip Antenna with four output that has the same power using power divider and 90-degree phase different output for SIL Radar. this is the novel shaped microstrip Antenna with the free frequency, more unassuming configuration, and inexpensive material at the 2.4 GHz for SIL Radar. This system is an important part component of SIL Radar that is package consists of a 2.4 GHz Microstrip antenna with the Square Ring Patch with Ring Slot, double power divider which is double input with quad output with the same power and directional coupler 90-degree phase difference with two input and two output. The Antenna has single band and narrow bandwidth with the frequency is 2.38 GHz until 2.43 GHz under -10dB S parameter and frequency resonance 2.4 GHz, the radiation pattern is directional and the gain is 8.37 dBi, The Power divider has S parameter 2 port output of one part under -20dB at 2.4 GHz and isolation above -4dB that is all good agreement. The 90-degree hybrid coupler has S35 of -35.95dB, S46 of 35.09, S53 of -3.47, and S64 of -3.39 that all is qualified good operation. And overall size of the proposed antenna system is 100 mm times 55.7 mm with FR4 (Phenolic White Paper) with a dielectric constant is 4.4 that has 50ohm. DOI : https://doi.org/10.26905/jeemecs.v2i2.3253

Study of Patch Antennas with Koch Curve Form Slots

This work proposes the study of patch antennas with fractal slots. Initially, a 2.4 GHz microstrip antenna is designed. Then, the slots in the Koch fractals format are inserted with the iteration 0, 1 and 2. Similarly, it is expected that the antenna can be subjected to various functions in other applications. Simulations using CST STUDIO SUITE Student Edition software are shown, in addition to antenna measurements using the Network Analyzer.

A 9-10.6 GHz Microstrip Antenna - UWB Low Noise Amplifier with differential Noise Canceling technique for IoT applications.

A 9-10.6 GHz Microstrip Antenna - UWB Low Noise Amplifier with differential Noise Canceling technique for IoT applications.

DESIGN AND ANALYSIS OF META-MATERIAL BASED WLAN ANTENNA

In this paper, a 2.42 GHz micro-strip patch antenna is designed and analyzed using a conventional and a metamaterial (artificial) based Electromagnetic Bandgap (EBG) ground planes. The directivity, return loss and VSWR of the conventional 2.42 GHz patch antenna were found to be 5.23dB, -13.2dB, and 1.5 respectively. The proposed antenna then being mounted on a Mushroom-type EBG structures (artificial ground plane) produced better far-field performance as compared to conventional counterpart i.e. the return loss, directivity and VSWR were improved by 80.3%, 58.5% and 24.6%. The WLAN antenna was designed and tested on a miniaturized slotted EBG structure. The slotted EBG was 11.4 % compact as compared to the mushroom structure. The directivity, return loss and VSWR of the antenna using the slotted EBG are improved by be 51%, 31.8%, 15.4% respectively as compared to the patch conventional WLAN patch antenna. The antenna can be used for WLAN applications.

Automated Synthesis of an Optimized 5.2㎓ Microstrip Antenna using Genetic Algorithm and an Accurate Transmission Line Model

본 논문에서는 최적화된 마이크로스트립 안테나 설계 과정을 자동화하기 위한 효율적인 연산 접근법을 소개한다. 이러한 접근 방법은 근거리 무선 네트워크 (WLAN) 응용분야에 최적화된 5.2㎓ 대역 마이크로스트립 안테나의 설계에 사용되어진다. 실질적으로, 안테나 회로는 등가 회로로 모델링되어지고, 정밀 전송선로 기술이 TM01 모드에서 공진 발생 시 대상 마이크로스트립 안테나의 입력 임피던스를 분석적으로 도출하는데 사용된다. 이 입력 임피던스는 내성 유전 알고리즘의 적합성 함수를 얻는데 사용되며, 유전 알고리즘을 통해 대상 마이크로스트립 안테나의 최적화된 기하학적 매개변수의 합성을 할 수 있게 된다. 합성된 안테나는 3D EM 모의실험 소프트웨어인 High Frequency Structural Simulator (HFSS) 환경에서 설계되고 모의실험이 수행되었다. 결과적으로 반사 계수의 도식화와 합성된 안테나의 방사 패턴 결과를 얻을 수 있었다. 모의실험 결과는 5.2㎓ 대역 주파수에서 합성된 안테나가 –25㏈ 이하의 반사 손실과 함께 양호한 방사 성질 및 공진 특성을 갖는 것을 나타내고 있다.

Effect of Square Defect on 2.4GHz Microstrip Antenna

Effect of Square Defect on 2.4GHz Microstrip Antenna

Miniaturization Design of the 5.8GHz RFID Antenna Based on Metamaterial

In this paper we designed a 5.8GHZ microstrip antenna whose relative bandwidth is 3.77% and return loss is-36.941dB. It meets the needs of RFID systems.Besides, the resonant frequency of the antennas is reduced to 5.2GHZ, after adding the “I” ring resonator. Also, the paper shows that the other performance of the antenna still meet the RFID system requirements. It is 47.1% of the original size after adjusting the resonant frequency of the antenna to 5. 8GHz.

A 0.9–1.5 GHz Microstrip Antenna With Full Polarization Diversity and Frequency Agility

A microstrip antenna with frequency agility and polarization diversity is presented. Commercially available packaged RF microelectrical-mechanical (MEMS) single-pole double-throw (SPDT) devices are used with a novel feed network to provide four states of polarization control; linear-vertical, linear-horizontal, left-hand circular and right-handed circular. Also, hyper-abrupt silicon junction tuning diodes are used to tune the antenna center frequency from 0.9-1.5 GHz. The microstrip antenna is 1 in x 1 in, and is fabricated on a 4 in x 4 in commercial-grade dielectric laminate. To the authors' knowledge, this is the first demonstration of an antenna element with four polarization states across a tunable bandwidth of 1.4:1.

Design of High-Gain and Beam Steering Antennas Using a New Planar Folded-Line Metamaterial Structure

In the last few years, there has been growing interest in employing metamaterials (MTMs) to enhance antenna gain. In this paper we proposed a novel structure of planar folded-line left-handed metamaterial (FL-LHM) and applied it to improve the gain of three 5.8 GHz microstrip antenna types: a circularly polarized patch antenna, an antenna array, and a beam steering antenna. The planar FL-LHM structure was designed based on transmission line analysis. Their scattering parameters were obtained using a numerical model; the negative effective permittivity and permeability were then calculated from these parameters for the assessment of negative refraction index region. The S11and radiation patterns of three fabricated antennas were measured; these results matched well with the simulation. We observed that the gain was increased up to 3 dBi for all the antennas. In addition, we were also able to maintain the circular polarization as well as the steering of the antenna without changing its dimensions.