A new miniaturized patch antenna for wireless systems

2004 ◽  
Author(s):  
M. Sahli ◽  
T.A. Denidni ◽  
L. Talbi
Keyword(s):  
Patch Antenna ◽  
Wireless Systems

scholarly journals BROADBAND E-H SHAPED MICROSTRIP PATCH ANTENNA FOR WIRELESS SYSTEMS

2009 ◽  
Vol 98 ◽  
pp. 163-173 ◽  
Author(s):  
Mohammad Tariqul Islam ◽  
M. N. Shakib ◽  
Norbahiah Misran
Keyword(s):  
Patch Antenna ◽  
Wireless Systems ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch

scholarly journals Double U-slots patch antenna for tri-band wireless systems

2010 ◽  
Vol 20 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Hattan F. AbuTarboush ◽  
R. Nilavalan ◽  
D. Budimir ◽  
H. S. Al-Raweshidy
Keyword(s):  
Patch Antenna ◽  
Wireless Systems

scholarly journals A Triband Patch Antenna with Monopole-like and Patch-like Radiation Patterns for Multifunctional Wireless Systems

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Hai-Na Song ◽  
Zhao-Hui Chen ◽  
Jian-Feng Li
Keyword(s):  
Radiation Pattern ◽  
Patch Antenna ◽  
Ground Plane ◽  
Wireless Systems ◽  
Metal Sheet ◽  
Radiation Patterns ◽  
Zeroth Order ◽  
Annular Slot ◽  
The Third

A triband patch antenna with monopole-like and patch-like radiation patterns for multifunctional wireless systems is proposed. The antenna consists of a single square radiation patch with an annular slot, a ground plane, and a top-loaded metal sheet. The top-loaded metal sheet is shorted to the ground plane for producing a zeroth-order resonant (ZOR) mode, which has an omnidirectional radiation pattern at the lowest operation band, and its performance is robust to the location of the probe feed. With the annular slot and the off-center probe feed, a dual-resonant TM01 mode is excited, yielding unidirectional radiation patterns for the two upper operation bands. The ZOR and the dual-resonant TM01 modes can be independently controlled, and a triband antenna prototype with a square patch of 24 mm is fabricated and tested. The first bandwidth is 2.5–2.7 GHz with omnidirectional radiation pattern, the second and the third bandwidths with unidirectional radiation are 3.3–3.9 GHz and 4.8–6.1 GHz, and the realized gains over the three bands are about 2.6, 6.5, and 7.5 dBi, respectively.

Application of Biogeography-Based Optimization to Antennas and Wireless Communications

2021 ◽  
pp. 950-966
Author(s):  
Sotirios K. Goudos
Keyword(s):  
Wireless Communications ◽  
Patch Antenna ◽  
Wireless Systems ◽  
Future Research ◽  
Design Problems ◽  
Research Directions ◽  
Design And Optimization ◽  
Future Research Directions ◽  
Conclusion Section ◽  
Ofdm Signals

The purpose of this chapter is to briefly describe the BBO algorithm and present its application to antenna and wireless communications design problems. This chapter presents results from design cases that include patch antenna, linear antenna array, and a partial transmit sequence (PTS) scheme for OFDM signals based on BBO. The chapter is supported with an adequate number of references. This chapter is subdivided into five sections. The “background” section presents the issues, problems, and trends with BBO. Then the authors briefly present the main BBO algorithm. In the next section, they describe the design cases and present the numerical results. An outline of future research directions is provided in the following section while in the “conclusion” section the authors conclude the chapter and discuss the advantages of using a BBO-based approach in the design and optimization of wireless systems and antennas. Finally, an “additional reading section” gives a list of readings to provide the interested reader with useful sources in the field.

scholarly journals The RF Energy Harvesting Antennas Operating in Commercially Deployed Frequency Bands: A Comparative Study

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
M. Mrnka ◽  
P. Vasina ◽  
M. Kufa ◽  
V. Hebelka ◽  
Z. Raida
Keyword(s):  
Energy Harvesting ◽  
Reflection Coefficient ◽  
Comparative Study ◽  
Patch Antenna ◽  
Dielectric Resonator ◽  
Wireless Systems ◽  
Research Field ◽  
Slot Antenna ◽  
Dielectric Resonator Antenna ◽  
Rf Energy

This paper deals with suitable antennas for energy harvesting, which is a growing research field due to the utilization of nowadays ubiquitous and abundant RF energy. Four types of basic antenna structures suitable for harvesting applications, namely, the patch antenna, slot antenna, modified inverted F antenna, and dielectric resonator antenna, are compared from the viewpoint of reflection coefficient, efficiency, radiation patterns, and dimensions. The frequencies of interest were chosen so that they cover several main wireless systems operating between 0.8 GHz and 2.6 GHz, that is, GSM, UMTS, and WiFi.

scholarly journals Reconfigurable Circular-Ring Feed Patch Antenna with Tri-Polarization Diversity

2021 ◽  
Vol 9 ◽  
Author(s):  
Hui Gu ◽  
Lei Ge ◽  
Jihong Zhang
Keyword(s):  
Patch Antenna ◽  
Simple Structure ◽  
Wireless Systems ◽  
Circular Ring ◽  
Polarization Diversity ◽  
Circularly Polarized ◽  
Left Hand ◽  
Low Profile ◽  
Linearly Polarized ◽  
Functional Prototype

In this paper, a reconfigurable circular-ring feed patch antenna for polarization diversity applications is proposed. The reconfigurability is realized by using only two p-i-n diodes which are inserted into the circular feed ring of the aperture-coupled patch antenna. With the help of the p-i-n diodes, the polarization of the antenna is able to be altered among 45° linearly polarized (LP), left-hand circularly polarized (LHCP), and right-hand circularly polarized (RHCP) states. A fully-functional prototype is fabricated and measured. The measurement agrees well with the simulation and three polarization states are obtained. Owing to the merits of tri-polarization diversity, low profile and simple structure, the proposed design is a great candidate for future wireless systems.

scholarly journals Design of Multiband E-Shaped Patch Antenna with Hexagonal Slot for WLAN Applications

2019 ◽  
Vol 12 (1) ◽  
pp. 37-41
Author(s):  
A. Pramod Kumar
Keyword(s):  
Dielectric Constant ◽  
Reflection Coefficient ◽  
Radiation Pattern ◽  
Parametric Study ◽  
Patch Antenna ◽  
Return Loss ◽  
Wireless Systems ◽  
Antenna Design ◽  
Ism Band ◽  
Antenna Performance

Abstract The objective of E-shaped patch antenna with hexagonal slot is to operate in the ISM band for different kind of applications, such as WLAN, GPS, and various modern wireless systems. The posit antenna is designed using FR4 substrate having a dielectric constant of 4.4 with a thickness of 1.6 mm. Probe feed technique is used for this antenna design. A parametric study was included to determine the effect of design approaches and the antenna performance. The realization of the designed antenna was analyzed in term of boost (gain), return loss, and radiation pattern. The design was upsurged to confirm the best achievable result. This antenna resonates at three different frequencies at 1.6 GHz, 3.24 GHz, and 5.6 GHz with a reflection coefficient less than -10 dB and VSWR<2.

Sign in / Sign up

Export Citation Format

Share Document