scholarly journals The Simulation and Experiment of a Non-Cross-Feeding Printed Log-Periodic Antenna

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Chun-Ying Kang ◽  
Shu Lin ◽  
Zhi-Hua Zhao ◽  
Li-Wen Jing
Keyword(s):  
Radiation Pattern ◽  
Coaxial Line ◽  
Antenna Design ◽  
Wideband Antenna ◽  
Feeding Structure ◽  
Simulation And Experiment ◽  
Log Periodic Antenna ◽  
Simulation Results ◽  
Antenna Model ◽  
Cst Microwave Studio

A non-cross-fed printed log-periodic antenna is simulated and studied experimentally. To avoid complex feeding with long coaxial line, the non-cross-feeding structure is applied in this antenna. The software CST Microwave Studio is employed to simulate the proposed antenna, and the optimized antenna model is obtained. According to the simulation results, the antenna prototype is produced and measured. Simulation and measured results show that the antenna is withS11<-10 dB in band of 4.2–9.2 GHz. And the radiation pattern and gain vary steadily in this band, which achieves requirements for wideband antenna. This antenna design can be extended to the design of the antenna integrated in communication circuit.

scholarly journals Asymmetric-Slit Method on WiFi Antenna with 2.4 GHz and 5 GHz Frequency

2020 ◽  
Vol 4 (2) ◽  
pp. 53
Author(s):  
Petrus Kerowe Goran ◽  
Eka Setia Nugraha
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Antenna Design ◽  
The Internet ◽  
Information Searching ◽  
Simple Method ◽  
A Value ◽  
Simulation Results ◽  
5 Ghz ◽  
Antenna Model

Wireless Fidelity (WiFi) devices are often used to access the internet network, both for working and in information searching. Accessing the internet can be administered anywhere provided that the area is within the WiFi devices range. A WiFi device uses 2.4 GHz and 5 GHz operating frequencies. There were several methods employed in the previous studies so that an antenna design could work in two different frequencies, i.e., winding bowtie method, Sierpinski method, and double-circular method. This paper employed a simple method, the slit method. The objective of this paper is to discover a simple antenna model that works on 2.4 GHz and 5 GHz frequencies. This paper employed a square patch microstrip antenna with a slit method. The dimensions of the designed square patch microstrip antenna were 42.03 mm × 27.13 mm × 0.035 mm. The antenna worked at 2.4 GHz and 5 GHz frequencies. The obtained simulation results after the optimization showed that the square patch microstrip antenna using the slit method acquired a value of S11 (return loss) of -10.15 dB at a frequency of 2.4 GHz and -37.315 dB at a frequency of 5 GHz.

scholarly journals Enhanced Dipole Antenna for RFID by Using Metamaterials

2021 ◽  
Vol 8 (2) ◽  
pp. 47-50
Author(s):  
Nail Alaoui ◽  
Aicha Djalab ◽  
Lakhdar Bouhamla ◽  
Abdellah Azouze ◽  
Rania Ibtissam Benmelouka ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Resonant Frequency ◽  
Radiation Pattern ◽  
Return Loss ◽  
Dipole Antenna ◽  
Frequency Characteristics ◽  
Antenna Design ◽  
Antenna Size ◽  
Novel Method ◽  
Simulation Results

The paper at hand discusses a novel method of miniaturization of antenna design using metamaterials. We suggest a novel method to improve frequency characteristics while reducing antenna size. This method is based on the connection of this element resonant two split rings resonator. The resonant frequency, return loss, bandwidth, radiation pattern, gain, directivity, electromagnetic field, and current supplied by the proposed antenna are the parameters addressed in this study. CST software generates all simulation results.

scholarly journals Increasing Gain Evaluation of 2×1 and 2×2 MIMO Microstrip Antennas

2021 ◽  
Vol 11 (5) ◽  
pp. 7531-7535
Author(s):  
M. O. Dwairi
Keyword(s):  
Radiation Pattern ◽  
Patch Antenna ◽  
Microstrip Antennas ◽  
Substrate Material ◽  
Ultra Wideband ◽  
Uwb Antenna ◽  
Wideband Antenna ◽  
Mimo Antennas ◽  
Simulation Results

In this paper, a semi-circular ultra-wideband antenna has been modified according to the 2×1 and 2×2 MIMO scenarios. The proposed antennas were designed based on the FR-4 substrate material with dimensions of 36×50mm and 60×60mm for 2×1 and 2×2 scenarios respectively. Simulation results show that a gain improvement of the proposed MIMO antennas from 1 to 2.5dB has been achieved in comparison with the single patch antenna. The radiation pattern for the original and the proposed 2×2 MIMO antennas are exhibited. The main advantage of the proposed antennas is that the gain improves without the need to increase the operating power. This makes the proposed MIMO antennas suitable to be used for UWB antenna applications.

MODIFIED PRINTED DIPOLE WITH REFLECTOR AND DIRECTOR

2016 ◽  
Vol 78 (6-4) ◽  
Author(s):  
Farhana Abu Hussin ◽  
Badrul Hisham Ahmad ◽  
Mohamad Zoinol Abidin Abd Aziz ◽  
Mohamad Kadim Suaidi
Keyword(s):  
Radiation Pattern ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Dipole Antenna ◽  
Area Network ◽  
Maximum Gain ◽  
Antenna Directivity ◽  
Simulation Results ◽  
Cst Microwave Studio

This paper presented the design for dipole antenna at 2.4GHz for wireless local area network (WLAN) application. This design aimed to improve the antenna gains and directivity. The printed dipole with reflector and director was designed and simulated using CST Microwave Studio. In this design, a metallic reflector was added in order to increase the gain. The director was added to the structure to maximize the antenna directivity. The simulation results showed that the antenna achieved a maximum gain of 5dB for the modified design and 6dBi for the directivity. Other antenna parameters were also investigated such as bandwidth, radiation pattern, and return los.

3-dB Radiation Beamwidth Adjustment for E-Shaped Microstrip Antennas

2014 ◽  
Vol 668-669 ◽  
pp. 1189-1193
Author(s):  
Geng Zhang ◽  
Chi Gao ◽  
Zi Bin Weng
Keyword(s):  
Radiation Pattern ◽  
Frequency Band ◽  
Patch Antenna ◽  
Microstrip Antennas ◽  
Microstrip Patch Antenna ◽  
Antenna Design ◽  
Optimum Frequency ◽  
Substrate Use ◽  
Wideband Antenna ◽  
Microstrip Patch

This paper introduces a simple, E-shaped slot loaded wideband microstrip patch antenna with a metallic cavity. The antenna design is an improvement from previous research and it is simulated using HFSS 13 software. The performance of the designed antenna was analyzed in term of bandwidth, gain, VSWR, and radiation pattern. What does the substrate use is air. The results show the wideband antenna is able to operate from 190MHz to 230MHz frequency band with optimum frequency at 210MHz, and the 3-dB radiation beamwidth of the E and the H plane at the 210MHz are 61° and 51°. However, the 3-dB radiation beamwidth of the E and the H plane at the 210MHz can be adjusted to 70° by using a metallic cavity.

scholarly journals A Wideband Printed Antenna for Covering Major Cellular Bands with a C- Shaped Patch

2012 ◽  
Vol 1 (4) ◽  
pp. 362
Author(s):  
P. Misra ◽  
A. Tripathy
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Cellular Communication ◽  
Printed Antenna ◽  
Feed Line ◽  
Frequency Coverage ◽  
Simulation Results ◽  
Microstrip Feed Line ◽  
Microstrip Feed ◽  
Cst Microwave Studio

In this paper the design of a new multistandard antenna is proposed suitable for major cellular bands. A C-shaped radiator with a microstrip feed line is proposed which supports major cellular communication band like AWS, DCS, DECT, PCS, PHS, 3G, UMTS, DSR, Wi-Bro, ISM, and DMB in the range of 1.7- 2.9 GHz. The designed antenna is simulated using CST Microwave Studio to achieve such wide frequency coverage. The simulation results of the designed structure in terms of return loss, VSWR and radiation pattern are presented.

scholarly journals Entwurfskonzept einer Car2Car-Multiband-Dachantenne

2012 ◽  
Vol 10 ◽  
pp. 63-68
Author(s):  
Y. Wang ◽  
M. Reit ◽  
W. Mathis
Keyword(s):  
Radiation Pattern ◽  
Horizontal Plane ◽  
Design Concept ◽  
Antenna Design ◽  
Average Gain ◽  
Wideband Antenna ◽  
Measurement Results ◽  
Antenna Length ◽  
Antenna Systems ◽  
Multi Band

Abstract. Due to the vastly increasing use of wireless services in the car, such as WiFi, Car2Car and LTE, the requirements on bandwidth and radiation pattern of the roof antenna systems become more challenging. In this work, a design concept for multi-band roof antenna systems is presented. We aim to get a higher bandwidth and an almost circular radiation pattern on the horizontal plane. Moreover, the antenna length is considered in order to fulfill the requirements set by construction ECE-regulations (ECE, 2010). The applicability of the design concept is not limited to multi-band roof antennas, it can also be used for a general wideband antenna design. For illustration of this concept, a multi-band roof antenna with a bandwidth of 780 MHz to 5.9 GHz and a near circular radiation pattern with an average gain of G = 3 dBi (at 5.9 GHz) on the horizontal plane is designed. The simulation and measurement results are presented.

A Novel Wideband Antenna Design Using U-slot

PIERS Online ◽  
2007 ◽  
Vol 3 (7) ◽  
pp. 1067-1070 ◽  
Author(s):  
Wenwen Chai ◽  
Xiaojuan Zhang ◽  
Jibang Liu
Keyword(s):  
Antenna Design ◽  
Wideband Antenna

Miniature and near-3D omnidirectional radiation pattern RFID tag antenna design

2009 ◽  
Vol 45 (18) ◽  
pp. 923 ◽  
Author(s):  
S.-L. Chen ◽  
K.-H. Lin ◽  
R. Mittra
Keyword(s):  
Radiation Pattern ◽  
Antenna Design ◽  
Rfid Tag
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