Dielectric Resonator Antenna Mounted on Cylindrical Ground Plane for Handheld RFID Reader at 5.8 GHz
TLDR
Dielectric resonator antenna (DRA) mounted on cylindrical ground plane is investigated for handheld RFID reader applications at 5.8 GHz and the radiation characteristics of the antenna in free space and in the presence of a proposed compact reader device model and human hand are calculated.Abstract:
Dielectric resonator antenna (DRA) mounted on cylindrical ground plane is investigated for handheld RFID reader applications at 5.8 GHz. The simplicity of the structure makes it practical in terms of cost, space, and ease of fabrication. The radiation characteristics of the antenna in free space and in the presence of a proposed compact reader device model and human hand are calculated. The antenna is circularly polarized and exhibits peak gain of 7.62 dB at 5.8 GHz with high front to back ratio of 15.5 dB. Using the same reader device model, a sequentially feeding 2×2 DRA array mounted on the same cylindrical ground plane is used for RFID reader antenna at 5.8 GHz. The array introduces high gain of 9.36 dB at 5.8 GHz with high front to back ratio of 10.48 dB. The 2×2 DRA array elements exhibit circular polarization over a frequency band of 1.1 GHz. The axial ratio is 1.1 dB at 5.8 GHz. The proposed reader model is simple and has a small size compared with that in the case of planar ground plane. The results are calculated using the finite element method (FEM) and compared with that calculated using the finite integral technique (FIT).read more
Citations
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An ultra-wideband rectangular ring dielectric resonator antenna integrated with hybrid shaped patch for wireless applications
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Dual-Band Antenna Array with Reduced Mutual-Coupling for Wearable Wireless Communication Applications
TL;DR: In this paper, a dual-band wearable microstrip antenna printed on FR4-substrate is designed and fabricated for wearable wireless communications, which is optimized for wideband radiation characteristics.
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Circularly Polarized Single Feed Hemispherical Dielectric Resonator Antenna for Wi-MAX Applications
TL;DR: In this paper, a concentric circular slots coupled hemispherical dielectric resonator antenna fed by a modified microstrip line for circular polarization is investigated, which achieves a very good 10 dB impedance bandwidth of 27.379% and a 3dB axial ratio bandwidth of 640 MHz.
References
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TL;DR: In this paper, the authors present an overview of the history of connected arrays and their applications in the field of pattern synthesis, and present a detailed analysis of the connections and their properties.
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RFID Handbook: Radio-Frequency Identification Fundamentals and Applications
TL;DR: Differentiation of RFID systems fundamentals ofRFID systems physical basics frequency ranges and regulations coding and modulation data integrity cryptography standards architecture of electronic carriers readers production of transponders and contactless smart cards applications of RF ID systems market guide.
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Dielectric Resonator Antennas
H. K. Ng,Kwok Wa Leung +1 more
TL;DR: Linearly and circularly polarized conformal strip-fed dielectric resonator antennas (DRAs) are studied in this article, where a parasitic patch is used to excite a nearly degenerate mode.
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The Transmission-Line Modeling Method: Tlm
TL;DR: The first book that deals exclusively with the Transmission-Line-Modeling (TLM) method of analysis as mentioned in this paper is a welcome and much needed text that covers the basic features as well as the most important applications of the TLM method.
Book
Dielectric resonator antenna handbook
Abstract: In recent years, the dielectric resonator antenna (DRA) has emerged as a new and viable alternative to conventional low-gain elements such as dipoles, monopoles, and microstrip patches. This practical resource presents complete, up-to-date details on DRAs in a single volume. The book provides you with clear guidance on the mode of operation and radiation behavior of DRAs, the main methods of excitation, and the major advances in DRA technology. This hands-on reference equips you with simple equations and graphs that help you rapidly design DRAs of spherical, cylindrical, and rectangular shapes, without having to resort to complex analytical or numerical calculations. You find guidelines for designing feeds required to excite the DRAs, such as probes, apertures, and microstrip lines. In addition, the book offers you various techniques for enhancing the bandwidth performance of DRAs for wideband applications. You learn how to design low profile DRAs and DRAs with circular polarization. Several approaches for designing linear and planar DRAs arrays are also considered. Moreover, this comprehensive book provides advice on the fabrication of DRAs and measurement methods used to characterize their performance. Numerous design examples are included to give you a sense of the versatility that DRAs afford.