ook.pdf (5.14 MB)
3–5 V, 3–3.8 MHz OOK modulator with a-IGZO TFTs for flexible wireless transmitter
conference contribution
posted on 2023-06-09, 11:30 authored by K Ishida, T Meister, S Knobelspies, Niko Munzenrieder, G Cantarella, G A Salvatore, G Troster, C Carta, F EllingerThis paper presents an On-Off-Keying (OOK) modulator for a flexible and wearable wireless transmitter implemented in an amorphous-Indium-Gallium-Zinc-Oxide (a-IGZO) TFT technology. The circuit consists of a three-stage ring oscillator for the carrier and an output driver with an OOK modulation switch, realized with just five transistors. In order to maximize the operation frequency, we use 2 µm-long nMOS transistors in the circuit design. The proposed OOK modulator is fabricated on a polyimide flexible substrate, and characterized with 3-to-5 V supply voltages and an output load capacitance of 15 pF. The circuit operates from the lowest supply voltage of 3 V, while the highest measured oscillation frequency is 3.76 MHz at 5 V V DD . Although the schematic is simple and straight forward, the equivalent modulation depth ranges from 61.3 % to 78.2 %, which can be detected with an existing AM/OOK receiver in the same technology. The power consumptions for 3 V and 5 V supply voltages are 2.15 mW and 6.77 mW, respectively.
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Publication status
- Published
File Version
- Accepted version
Journal
2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)Publisher
IEEEExternal DOI
Page range
1-4Event name
Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2017 IEEE International Conference onEvent location
Tel-Aviv, IsraelEvent type
conferenceEvent date
13-15 Nov. 2017Book title
2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Sensor Technology Research Centre Publications
Notes
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other worksFull text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-01-10First Open Access (FOA) Date
2018-01-10First Compliant Deposit (FCD) Date
2018-01-10Usage metrics
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