Microstrip antenna with an air gap for use in RFID and tracking of cargo containers

2018 ◽  
Author(s):  
Nho Luong Cong ◽  
Sergei T. Knyazev ◽  
Viet Tran Xuan ◽  
Hung Luu Quang
Keyword(s):  
Microstrip Antenna ◽  
Air Gap ◽  
Cargo Containers

scholarly journals Perancangan dan Realisasi Antena Mikrostrip Log Periodik dengan Elemen Parasitik Air Gap untuk Aplikasi TV Digital DVB-T2

2019 ◽  
Vol 7 (2) ◽  
pp. 324
Author(s):  
INDRA SURJATI ◽  
SYAH ALAM ◽  
YULI KURNIA NINGSIH
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Digital Tv ◽  
Air Gap ◽  
Frequency Range ◽  
Parasitic Element ◽  
Measurement Results ◽  
Working Frequency

ABSTRAKPenelitian ini mengusulkan desain dan prototipe antena mikrostrip log periodik yang dikembangkan dengan metode parasitik air gap (celah udara) untuk aplikasi TV digital pada rentang frekuensi 478-694 MHz. Penggunaan elemen parasitik dengan celah udara bertujuan untuk meningkatkan nilai gain pada antena. Dari hasil pengukuran diperoleh nilai return loss sebesar -20.27 dB dan VSWR sebesar 1.31 pada frekuensi kerja 600 MHz. Bandwidth yang dihasilkan dari antena yang telah dipabrikasi adalah 273 MHz dengan rentang frekuensi kerja 461 MHz – 734 MHz. Gain yang dihasilkan dari antena mikrostrip log periodik dengan elemen parasitik adalah 16.67 dB pada frekuensi kerja 600 MHz atau meningkat 40.02 % dibandingkan dengan log periodik konvensional yang telah didesain sebelumnya. Dari keseluruhan hasil yang diperoleh maka dapat disimpulkan bahwa antena yang diusulkan dapat digunanakan sebagai antena penerima untuk aplikasi TV Digital di Indonesia.Kata kunci: antena, mikrostrip, log periodik, parasitik, celah udara ABSTRACTThis study proposes the design and prototype of log periodic microstrip antenna which was developed using the parasitic air gap for digital TV applications with a frequency range of 478-694 MHz. The use of parasitic elements with air gap aims to increase the gain of the antenna. From the measurement results, proposed antenna obtained return loss of -20.27 dB and VSWR of 1.31 at the working frequency of 600 MHz. The bandwidth produced from proposed antenna is 273 MHz with a working frequency range of 461 MHz - 734 MHz. The gain generated from log periodic microstrip antenna with parasitic element is 16.67 dB at the working frequency of 600 MHz or increased 40.02 % compared with conventional log periodic that have been designed before. From the overall results obtained, it can be concluded that the proposed antenna can be used as receiver antenna for Digital TV applications in Indonesia.Keywords: antenna, microstrip, log periodic, parasitic, air gap

Circular-disk microstrip antenna with an air gap

1984 ◽  
Vol 32 (8) ◽  
pp. 880-884 ◽  
Author(s):  
Kai-Fong Lee ◽  
K. Ho ◽  
J. Dahele
Keyword(s):  
Microstrip Antenna ◽  
Circular Disk ◽  
Air Gap

scholarly journals FULL-WAVE ANALYSIS OF ANISOTROPIC CIRCULAR MICROSTRIP ANTENNA WITH AIR GAP LAYER

2014 ◽  
Vol 34 ◽  
pp. 143-151 ◽  
Author(s):  
Sami Bedra ◽  
Randa Bedra ◽  
Siham Benkouda ◽  
Tarek Fortaki
Keyword(s):  
Microstrip Antenna ◽  
Air Gap ◽  
Wave Analysis ◽  
Full Wave ◽  
Full Wave Analysis ◽  
Circular Microstrip Antenna

scholarly journals ANN Synthesis Model of Single-Feed Corner-Truncated Circularly Polarized Microstrip Antenna with an Air Gap for Wideband Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Zhongbao Wang ◽  
Shaojun Fang
Keyword(s):  
Computer Aided Design ◽  
Microstrip Antenna ◽  
Microstrip Antennas ◽  
Air Gap ◽  
Training Data ◽  
Data Sets ◽  
Circularly Polarized ◽  
Artificial Neural Network Ann ◽  
Aided Design ◽  
Lm Algorithm

A computer-aided design model based on the artificial neural network (ANN) is proposed to directly obtain patch physical dimensions of the single-feed corner-truncated circularly polarized microstrip antenna (CPMA) with an air gap for wideband applications. To take account of the effect of the air gap, an equivalent relative permittivity is introduced and adopted to calculate the resonant frequency andQ-factor of square microstrip antennas for obtaining the training data sets. ANN architectures using multilayered perceptrons (MLPs) and radial basis function networks (RBFNs) are compared. Also, six learning algorithms are used to train the MLPs for comparison. It is found that MLPs trained with the Levenberg-Marquardt (LM) algorithm are better than RBFNs for the synthesis of the CPMA. An accurate model is achieved by using an MLP with three hidden layers. The model is validated by the electromagnetic simulation and measurements. It is enormously useful to antenna engineers for facilitating the design of the single-feed CPMA with an air gap.

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