Frequency reconfigurable substrate integrated waveguide (SIW) cavity F-shaped slot antenna

The evolution of 5G is became a common in this decade and characteristic of 5G provide high speed and low latency provoke the demand of development of millimeter wave antenna. This project is to design a compact millimeter-wave antennafor 5G at28GHz using CST Studio Suite and validation of simulated result using fabrication and measurements. The double side FR-4 with thickness of 1.6 mm and dielectric constant of 4.7, copper with thickness 0.035mm is used and microstrip feed line is used as feeding technique to the antenna. The CST Studio Suite used in simulation and obtain reflection coefficient of -45.11 dB, 1.011 VSMR, gain of 5.472 dBi and directivity of 6.694 dBi at 28 GHz. The measured result obtains27.776 GHz with -19.18 dB using VNA.

Section: Antenna Design Specificationmentioning

confidence: 99%

Deign of Millimeter-Wave Antennas for 5G

Ze Min,

Al-Fadhali,

Majid

et al. 2023

“…As a result, the antenna's size must be further improved. The methodology was adopted from recent literature review [11][12][13][14][15][16][17]. The simulation is done by using CST Microwave Studio 2018, then the performance of the antenna is investigated in term of reflection coefficient, bandwidth, gain and radiation pattern.…”

Section: Antenna Design and Specificationmentioning

confidence: 99%

Truncated Patch Antenna with two Different Substrate Materials for GPS Application

Mokhlis¹,

Al-Fadhali²,

Majid³

et al. 2022

In the wireless communication technology, the microstrip patch antenna has gained an intensive application due to their light weight, small size, easy reproduction, and integration ability with circuitry. Therefore, this research presents the work in designing planar microstrip patch antenna for GPS using microstrip line feed that can operate at 1.575 GHz with corresponding polarization. Furthermore, analysis done on a two different substrate that is Taconic TLC-32 and FR-4 with dielectric constant 3.2 and 4.3 respectively. Comparison is done among these two different substrates which use microstrip feed line, feeding insect and truncated two opposite edged of the squared patch. The performance of the patch antenna is demonstrated by the simulated bandwidth, return loss, gain and radiation pattern. From the study, shows that the antenna that used RF-4 substrate has a better performance and have a smaller size compared to Taconic TLC-32. The results show that simulated and measured resonate frequency for return loss is -14.60 and -14.15 dB at 1.575 GHz. It is also by implementing the feeding insect technique, it could improve the performance of antenna. Both simulated and experimental result shows that the prototype has good performance, and it is suitable for GPS application

“…Hence, mutual coupling reduces the radiating elements efficiency and performance of radiating elements in both the transmit and receive modes [11]- [14]. In this work, we have only study about mutual coupling and how it affects the S parameters of the micro-strip antenna using CST Microwave studio as it is based upon Finite Integration in Technique (FIT) and is also popular among antenna designers due to ease in simulations [15][16][17][18][19].…”

Section: Antenna Design 21 Design and Simulation Of Two-element Mimo ...mentioning

confidence: 99%

Two-Element MIMO Crack Finger Microstrip Antenna for Hand-Held Devices

Elamin¹,

Alabid²,

Gismalla³

et al. 2022

In this paper,we studied the effect of mutual coupling between MIMO antennas and a method is proposed to reduce it between 2-element micro-strip MIMO antenna systems for handheld devices. To reduce mutual coupling between the MIMO antenna element a separate ground plane is designed and the two elements are positioned on the edges of the 2-element MIMO antenna system. A novel idea defined in order to reduce mutual coupling between the closely spaced micro-strip patch elements is adding finger shapes at the edge of each patch antenna to design a new crack finger micro-strip the fingers generate capacitance in between which improved the matching between the patch and the Micro-strip transmission line as well as the mutual coupling reduced from -25 dB to -40 dB. The simulation results showed that the 2-element MIMOsystem covered the frequency of 2.4 GHz, and the gain and directivity are 6.149 dB and 4.399All the simulations were carried out in CST Microwave Studio.