Details
| Original language | English |
|---|---|
| Article number | 8906108 |
| Pages (from-to) | 83-92 |
| Number of pages | 10 |
| Journal | IEEE Journal of Radio Frequency Identification |
| Volume | 4 |
| Issue number | 2 |
| Early online date | 19 Nov 2019 |
| Publication status | Published - Jun 2020 |
Abstract
This paper presents a 24 GHz Radio Frequency IDentification (RFID) sensor tag including an optically transparent patch antenna and an RF circuit. These components are placed on a single efficient solar cell and the transparency is achieved by realizing metal patches and lines as grid structure. Since the analog front-end is implemented in the microstrip line technology, the impact of the grid structure on the characteristic impedance and the propagation constant of microstrip transmission lines is studied in detail. The knowledge derived are taken into account in the design process of the meshed patch antenna as well as the modulator and demodulator circuit. Furthermore, the influence of the solar cell on the characteristics of the analog front-end is investigated. The overall dimensions of the sensor tag are 13\times 13\times 4 mm 3 including the aforementioned components, a microcontroller, an acceleration sensor and an energy storage. The perforated analog front-end fabricated on quartz glass has an overall transparency of 75 % and an antenna efficiency of 49 %. The achieved sensitivity value of the developed RFID sensor tag is -36 dBm resulting in a maximum communication range of approximately 1.3 m.
Keywords
- K-band, RFID tag, microwave circuit, patch antenna, radio frequency identification, transmission line
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Physics and Astronomy(all)
- Instrumentation
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In: IEEE Journal of Radio Frequency Identification, Vol. 4, No. 2, 8906108, 06.2020, p. 83-92.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Optically Transparent 24 GHz Analog Front-End Based on Meshed Microstrip Lines for the Integration in a Self-Sufficient RFID Sensor Tag
AU - Dao, Quang Huy
AU - Grundmann, Lukas
AU - Geck, Bernd
PY - 2020/6
Y1 - 2020/6
N2 - This paper presents a 24 GHz Radio Frequency IDentification (RFID) sensor tag including an optically transparent patch antenna and an RF circuit. These components are placed on a single efficient solar cell and the transparency is achieved by realizing metal patches and lines as grid structure. Since the analog front-end is implemented in the microstrip line technology, the impact of the grid structure on the characteristic impedance and the propagation constant of microstrip transmission lines is studied in detail. The knowledge derived are taken into account in the design process of the meshed patch antenna as well as the modulator and demodulator circuit. Furthermore, the influence of the solar cell on the characteristics of the analog front-end is investigated. The overall dimensions of the sensor tag are 13\times 13\times 4 mm 3 including the aforementioned components, a microcontroller, an acceleration sensor and an energy storage. The perforated analog front-end fabricated on quartz glass has an overall transparency of 75 % and an antenna efficiency of 49 %. The achieved sensitivity value of the developed RFID sensor tag is -36 dBm resulting in a maximum communication range of approximately 1.3 m.
AB - This paper presents a 24 GHz Radio Frequency IDentification (RFID) sensor tag including an optically transparent patch antenna and an RF circuit. These components are placed on a single efficient solar cell and the transparency is achieved by realizing metal patches and lines as grid structure. Since the analog front-end is implemented in the microstrip line technology, the impact of the grid structure on the characteristic impedance and the propagation constant of microstrip transmission lines is studied in detail. The knowledge derived are taken into account in the design process of the meshed patch antenna as well as the modulator and demodulator circuit. Furthermore, the influence of the solar cell on the characteristics of the analog front-end is investigated. The overall dimensions of the sensor tag are 13\times 13\times 4 mm 3 including the aforementioned components, a microcontroller, an acceleration sensor and an energy storage. The perforated analog front-end fabricated on quartz glass has an overall transparency of 75 % and an antenna efficiency of 49 %. The achieved sensitivity value of the developed RFID sensor tag is -36 dBm resulting in a maximum communication range of approximately 1.3 m.
KW - K-band
KW - RFID tag
KW - microwave circuit
KW - patch antenna
KW - radio frequency identification
KW - transmission line
UR - http://www.scopus.com/inward/record.url?scp=85115848889&partnerID=8YFLogxK
U2 - 10.1109/jrfid.2019.2954471
DO - 10.1109/jrfid.2019.2954471
M3 - Article
VL - 4
SP - 83
EP - 92
JO - IEEE Journal of Radio Frequency Identification
JF - IEEE Journal of Radio Frequency Identification
IS - 2
M1 - 8906108
ER -