Effective Antenna Simulations using CST MICROWAVE STUDIO®

2007 ◽  
Author(s):  
Franz Hirtenfelder
Keyword(s):  
Cst Microwave Studio

scholarly journals Application of Defected Ground Structure to Suppress Out-of-Band Harmonics for WLAN Microstrip Antenna

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Pravin Ratilal Prajapati
Keyword(s):  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Filter Design ◽  
Stop Band ◽  
Local Area ◽  
Area Network ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Cst Microwave Studio

An application of defected ground structure (DGS) to reduce out-of-band harmonics has been presented. A compact, proximity feed fractal slotted microstrip antenna for wireless local area network (WLAN) applications has been designed. The proposed 3rd iteration reduces antenna size by 43% as compared to rectangular conventional antenna and by introducing H shape DGS, the size of an antenna is further reduced by 3%. The DGS introduces stop band characteristics and suppresses higher harmonics, which are out of the band generated by 1st, 2nd, and 3rd iterations. H shape DGS is etched below the 50 Ω feed line and transmission coefficient parameters (S21) are obtained by CST Microwave Studio software. The values of equivalent L and C model have been extracted using a trial version of the diplexer filter design software. The stop band characteristic of the equivalent LC model also has been simulated by the Advance Digital System software, which gives almost the same response as compared to the simulation of CST Microwave Studio V. 12. The proposed antenna operates from 2.4 GHz to 2.49 GHz, which covers WLAN band and has a gain of 4.46 dB at 2.45 GHz resonance frequency.

Chemical potential variation effect of new design of graphene antenna for satellite applications

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammed Amin Rabah ◽  
Bekhti Mohammed
Keyword(s):  
Patch Antenna ◽  
Chemical Potential ◽  
Space Environment ◽  
Antenna Element ◽  
Space Technology ◽  
Content Type ◽  
Antenna Performance ◽  
Technology Applications ◽  
Satellite Applications ◽  
Cst Microwave Studio

Purpose The present work aims to analyze the performance of a newly designed graphene-based patch antenna by varying the chemical potential in graphene sheet, using the CST Microwave Studio ® software. This study mainly seeks to discuss and assess the advantage of using graphene, instead of copper, as the radiating patch. It should be noted that graphene is a new material that possesses unique properties. Its parameters are optimized for the purpose of introducing it in satellite technology. Design/methodology/approach The use of graphene as a radiating patch of space technology applications, where a polygonal graphene patch antenna element is designed by the CST Microwave Studio ® software with Taconic RF-41 substrate to resonate in the satellite bands. Findings Analysis of a graphene patch sheet by a variation in the chemical potential to ensure operation in a space environment. Originality/value The increase in the chemical potential for a graphene patch antenna has shown a prominent increase in the values of the gain. A new contribution, by the combination of the antenna performance improvement techniques and the use of graphene as a radiating patch of space technology applications.

scholarly journals DESAIN ANTENA MIKROSTRIP UNTUK ALTERNATIF ANTENA SIDEBAND DVOR (DOPPLER VHF OMNIDIRECTIONAL RANGE)

2020 ◽  
Vol 5 (1) ◽  
pp. 50-58
Author(s):  
Totok Warsito ◽  
Yuyun Suprapto ◽  
Margono Margono ◽  
Romma Diana
Keyword(s):  
Return Loss ◽  
Cst Microwave Studio

Antena merupakan salah satu perangkat penting yang ada pada sistem navigasi Doppler VOR (DVOR). Saat ini pengembangan antena dengan biaya produksi rendah menjadi salah satu alternatif tujuan para peneliti. Salah satu teknologi yang banyak digunakan sebagai solusinya adalah antena berbasis mikrostrip. Sebab antena berbasis mikrostrip menawarkan biaya produksi yang sangat rendah dibandingkan dengan jenis antena lain. Antena yang dipakai pada sistem DVOR saat ini adalah antena Alford Loop. Pada penelitian ini dilakukan perancangan antena mikrostrip rectangular dengan pencatuan coaxial sebagai alternatif antena DVOR yang bekerja pada frekuensi VHF (frekuensi 108-118 MHz), sehingga hal ini memungkinkan biaya produksi yang lebih murah dibandingkan antenna Alford Loop pada umumnya. Perancangan dan simulasi antena dilakukan menggunakan software CST Microwave Studio menggunakan material FR-4 dengan konstanta dielektrik (). Hasil perancangan dan simulasi antena menunjukkan return loss (S11) sebesar -16.1 dB dan gain sebesar 4 dB pada frekuensi 113 MHz. Dari hasil simulasi juga dapat diketahui bahwa memiliki polarisasi linier horizontal dan polaradiasi yang bersifat omni-directional.

GROUNDING EFFECT ON THE PERFORMANCE OF UWB ICE-CREAM CONE ANTENNA

2016 ◽  
Vol 78 (5-10) ◽  
Author(s):  
Siti Rohmah Mohamed Kamaruddin ◽  
Ahmad Rakimi Mohamed ◽  
Abu Bakar Ibrahim
Keyword(s):  
Dielectric Constant ◽  
Standing Wave ◽  
Ice Cream ◽  
Voltage Standing Wave Ratio ◽  
Planar Antenna ◽  
Radiation Characteristics ◽  
Dielectric Thickness ◽  
Antenna Performance ◽  
Spectrum Band ◽  
Cst Microwave Studio

In this paper, presents the grounding effect on the performance of UWB Ice Cream Cone Antenna communication. This planar antenna designed on a FR4 substrate with the dielectric thickness, 1.6 mm and the dielectric constant Ɛr, 4.7. An analysis results for antenna with different parameter for width of feed as a ground has been investigated. The antennas were designed and simulated by using CST Microwave Studio Simulation. The proposed antenna performs from 4 GHz to 11 GHz spectrum band. The return losses, S11 for the suggestion antenna must be below than -10dB and voltage standing wave ratio, VSWR less than 2. The best grounded single ice cream cone antenna performance was obtained at 5.688 GHz with antenna sizes is 12 mm x 14.5 mm. The antenna gives omnidirectional radiation characteristics from UWB spectrum band requirement with reasonable gain values.

scholarly journals A Multiband Printed Log-Periodic Dipole Array for Wireless Communications

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Giovanni Andrea Casula ◽  
Paolo Maxia
Keyword(s):  
Wireless Communications ◽  
Radiation Pattern ◽  
Frequency Band ◽  
Stop Band ◽  
Operating Frequency ◽  
Frequency Bands ◽  
Operating Frequency Band ◽  
Input Matching ◽  
Compact Size ◽  
Cst Microwave Studio

A multiband printed Log-periodic dipole array (LPDA) antenna for wireless communications is presented. The antenna has been designed starting from Carrel’s theory, optimized using CST Microwave Studio 2012, and then realized. The comparison between simulated and measured results shows that the proposed antenna can be used for wireless communications both in the S (2.4–3 GHz) and in the C (5.2–5.8 GHz) frequency bands, with very good input matching and a satisfactory end-fire radiation pattern. Moreover, it has a compact size, is very easy to realize, and presents an excellent out-of-band rejection, without the use of stop-band filters, thus avoiding interference out of its operating frequency band.

Local thickness-dependent permittivity of wire media in CST microwave studio

2017 ◽  
Author(s):  
Gabriel Moreno ◽  
Maziar Hedayati ◽  
Ali Forouzmand ◽  
Alexander B. Yakovlev ◽  
Mario G. Silveirinha ◽  
...  
Keyword(s):  
Wire Media ◽  
Cst Microwave Studio

Characterization and Formulation of Microstrip-Slot Impedance with Different Thickness and Relative Permittivity

2015 ◽  
Vol 781 ◽  
pp. 53-56
Author(s):  
Khairul Huda Yusof ◽  
Norhudah Seman ◽  
Mohd Haizal Jamaluddin ◽  
D.N.A. Zaidel
Keyword(s):  
Curve Fitting ◽  
Relative Permittivity ◽  
Slot Line ◽  
Fitting Method ◽  
Curve Fitting Method ◽  
Different Thickness ◽  
Cst Microwave Studio

This paper presents the characterization of a microstrip-slot line in terms of its impedance and dimension. The characterization is made by referring to the analysis of different relative permittivity and thicknesses of substrates, which conducted by using CST Microwave Studio. Based on the characterization with the use of completing square curve fitting method, new formulated equations are proposed for microstrip-slot line. These formulated equations are suitable for thin substrate with low relative permittivity. The characterization is made based on the substrates with the selected thickness of 0.508 mm, 0.762 mm and 1.542 mm, for relative permittivity of 4.5 (TMM4), 3.38 (RO 4003C) and 2.94 (RT 6002).

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