Design of RFID Tag Antenna with Impedance Matching Techniques at UHF Band

2018 ◽  
pp. 119-140
Author(s):  
K. Rama Devi ◽  
A. Mallikarjuna Prasad ◽  
A. Jhansi Rani
Keyword(s):  
Impedance Matching ◽  
Rfid Tag ◽  
Matching Techniques ◽  
Uhf Band

The study of UHF band passive RFID tag antenna

2015 ◽  
Author(s):  
Z.G. Wen ◽  
F.D. Wang ◽  
D.Y. Zhao ◽  
Y.B. Wang
Keyword(s):  
Rfid Tag ◽  
Passive Rfid ◽  
Uhf Band

Parasitic aware impedance matching techniques for RF amplifiers

2011 ◽  
Vol 70 (1) ◽  
pp. 91-102 ◽  
Author(s):  
K. Dasgupta ◽  
A. Dutta ◽  
T. K. Bhattacharyya
Keyword(s):  
Impedance Matching ◽  
Rf Amplifiers ◽  
Matching Techniques

scholarly journals Analysis and Measurement of RCS for UHF Band RFID Tag Antennas

2007 ◽  
Vol 18 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Hyo-Sang Moon ◽  
Nam-Hoon Kim ◽  
Jong-Wook Lee ◽  
Bom-Son Lee
Keyword(s):  
Rfid Tag ◽  
Uhf Band

scholarly journals Impedance Matching Techniques for Microstrip Patch Antenna

2017 ◽  
Vol 10 (28) ◽  
pp. 1-16 ◽  
Author(s):  
Sonia Sharma ◽  
C. C. Tripathi ◽  
Rahul Rishi ◽  
◽  
◽  
...  
Keyword(s):  
Patch Antenna ◽  
Impedance Matching ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Matching Techniques

scholarly journals Semicircular Patch-Embedded Vivaldi Antenna for Miniaturized UWB Radar Sensors

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 5988
Author(s):  
Jungwoo Seo ◽  
Jae Hee Kim ◽  
Jungsuek Oh
Keyword(s):  
Electric Fields ◽  
Impedance Matching ◽  
Low Frequency ◽  
Electrical Fields ◽  
Radar Sensors ◽  
Gain Enhancement ◽  
Uwb Radar ◽  
Vivaldi Antenna ◽  
Matching Techniques ◽  
Good Agreement

A microstrip-to-slot line-fed miniaturized Vivaldi antenna using semicircular patch embedment is proposed in this study. The conventional Vivaldi antenna has ultrawide bandwidth, but suffers from low gain in the low-frequency band. The proposed antenna topology incorporates the embedment of semicircular patch elements into the side edge of the antenna. This enables the phases of electric fields at both ends of the antenna to be out of phase. Since the distance between the two ends are λL/2 where λL is the wavelength at a low operating frequency, this antenna topology can achieve the constructive addition of electrical fields at the radiating end, leading to gain enhancement at the chosen low frequency. In comparison with the conventional Vivaldi antenna, the proposed antenna has a wider bandwidth from 2.84 to 9.83 GHz. Moreover, the simulated result shows a gain enhancement of 5 dB at low frequency. This cannot be realized by the conventional low-band impedance matching techniques only relying on slotted topologies. The measured results of this proposed antenna with a size of 45 × 40 × 0.8 mm3 are in good agreement with the simulated results.

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