Synthetic dielectrics for planar antenna design

2000 ◽  
Vol 36 (6) ◽  
pp. 491 ◽  
Author(s):  
E.A. Navarro ◽  
I.J. Craddock ◽  
D.L. Paul
Keyword(s):  
Antenna Design ◽  
Planar Antenna

Quad-Band multi-polarized antenna with modified electric-inductive−capacitive resonator

2021 ◽  
pp. 1-12
Author(s):  
Ghanshyam Singh ◽  
Binod Kumar Kanaujia ◽  
Vijay Kumar Pandey ◽  
Sachin Kumar
Keyword(s):  
Communication Systems ◽  
Ground Plane ◽  
Axial Ratio ◽  
Antenna Design ◽  
Planar Antenna ◽  
Rectangular Slot ◽  
Printed Circuits ◽  
Rectangular Patch ◽  
Easy Integration ◽  
Defected Ground Plane

Abstract A compact circularly polarized (CP) patch antenna is presented for modern communication systems. The prospective antenna consists of a microstrip-line inset-fed rectangular patch and a defected ground plane. A rotated rectangular slot and a modified electric-inductive-capacitive (m-ELC) resonator are introduced in the patch and the ground plane to achieve multiband behaviour. A corner of the radiating patch is truncated and an arrow-shaped stub is introduced for generating circular polarization. The physical area of the substrate is 0.26λ0 × 0.22λ0, and the radiator size is 0.16λ0 × 0.14λ0, where λ0 is the free-space wavelength estimated at the lowest frequency. The measured (S11≤-10 dB) bandwidths of the antenna are 80 MHz (3.58%) at 2.23 GHz, 75 MHz (2.64%) at 2.84 GHz, 80 MHz (2.50%) at 3.19 GHz, and 70 MHz (1.82%) at 3.83 GHz. The measured 3-dB axial ratio bandwidths are 40 MHz (1.41%), 100 MHz (3.12%), and 60 MHz (1.57%) at 2.84, 3.20 and 3.82 GHz, respectively. The proposed planar antenna design does not need dual-feed or multi-layered patches for achieving multiple CP bands. It offers easy integration with the printed circuits of the communication systems.

Planar Antenna Design for Omnidirectional Conical Radiation Through Cylindrical Leaky Waves

2018 ◽  
Vol 17 (10) ◽  
pp. 1837-1841 ◽  
Author(s):  
Davide Comite ◽  
Victoria Gomez-Guillamon Buendia ◽  
Symon K. Podilchak ◽  
David Di Ruscio ◽  
Paolo Baccarelli ◽  
...  
Keyword(s):  
Antenna Design ◽  
Planar Antenna ◽  
Leaky Waves ◽  
Conical Radiation

Design and development of patch compensated wideband Vivaldi antenna

2018 ◽  
Vol 10 (9) ◽  
pp. 1081-1087
Author(s):  
Rana Pratap Yadav ◽  
Vinay Kumar ◽  
Rajveer Dhawan
Keyword(s):  
Computer Aided Design ◽  
Beam Width ◽  
Antenna Design ◽  
Planar Antenna ◽  
Optimized Design ◽  
Frequency Range ◽  
Feed Line ◽  
Vivaldi Antenna ◽  
Aided Design ◽  
Theoretical Procedure

AbstractDesign and fabrication of a microstrip feedline-based Vivaldi antenna in the frequency range of 6.0–8.0 GHz have been presented. The Vivaldi antenna is a planar antenna, fabricated at the microstrip feedline by having an exponentially tapered slot profile on it. An optimized computer-aided design has been developed and simulated for the desired radiation parameters like voltage standing wave ratio, bandwidth, directionality, beam-width, etc. The optimized design has been fabricated and tested. Wherever the results are not found as desired; problem has been comprehensively investigated and analyzed. This is found associated with a discontinuity at feed line, fabrication tolerance constraints and parasitic capacitance at the edges or the bent of the microstrip feedline which introduce the parasitic reactance in antenna design. Here, the presented work explores a generalized theoretical procedure for the compensation of associated problem by incorporating the reactive patch on the feedline. The developed theory is applied in fabrication and tested for the desired results.

scholarly journals Double Loop Inductive Feed Patch Antenna Design for Antimetal UHF RFID Tag

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Lingfei Mo ◽  
Chenyang Li
Keyword(s):  
Patch Antenna ◽  
Impedance Matching ◽  
Microstrip Antennas ◽  
Antenna Design ◽  
Rfid Tags ◽  
Manufacturing Cost ◽  
Planar Antenna ◽  
Double Loop ◽  
Uhf Rfid ◽  
Rfid Tag

Planar UHF RFID antimetal tag can be widely used for the metallic products or packages with metal material inside. A double loop inductive feed planar patch antenna is proposed for UHF RFID tag mounted on metallic objects. Compared to conventional microstrip antennas or PIFA antennas used for UHF RFID tags, the double loop inductive feed patch antenna has a planar structure, with no short via or short wall, which could decrease the manufacturing cost of the tags. The double loop inductive feed structure also increases the radiation performance of the planar antenna. Moreover, the double loop inductive feed structure makes the impedance of the patch antenna be tuned easily for conjugate impedance matching.

scholarly journals A Compact Experimental Planar Antenna with a USB Connector for Mobile Phone Application

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Cheng-Hung Lin ◽  
Kwong-Kau Tiong
Keyword(s):  
Adverse Effect ◽  
Mobile Phone ◽  
Antenna Design ◽  
Planar Antenna ◽  
Universal Serial Bus ◽  
Good Design ◽  
Mobile Phone Application ◽  
Close Vicinity ◽  
Two Sides ◽  
Good Coverage

A practical antenna design combined with a universal serial bus (USB) connector in close vicinity is proposed. In the proposed arrangement, the antenna unit consisted of two planar inverted F antennas (PIFAs) placed on the two sides of the USB connector. The antenna is located at the bottom of the mobile phone to avoid the crowded space on the top side of the phone where various mobile phone accessories are usually assigned. A diplexer is incorporated in the unit to alleviate the adverse effect of the metal USB connector on the radiating efficiency of the antenna. A prototype antenna was fabricated and tested and showed good coverage for GSM850/900/1800/1900, UMTS2100, and LTE700/2500 multibands operation. The overall performances demonstrated the good design of the proposed unit for mobile phone application.

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