State-of-the-art in characterization-based printed electronics RF design

Makinen, R.; Sillanpää, Hannu; Jalo, Janne

doi:10.1109/wamicon.2013.6572731

Cited by 1 publication

(1 citation statement)

References 11 publications

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“…Printed electronics technology including digital inkjet printing [2] can be used to realize thin, lightweight, and flexible single-layer structures making it well suited for thin and flexible body-worn wireless sensor applications. Inkjet technology has been successfully demonstrated for system integration [3], radio frequency (RF) circuits [4], and antenna applications [5,6].…”

Section: Introductionmentioning

confidence: 99%

Radio Interface Design for Inkjet-Printed Biosensor Applications

Jalo¹,

Sillanpää²,

Makinen³

2013

PIER

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Abstract-Biomedical wireless sensors require thin, lightweight, and flexible single-layer structures operating in immediate proximity of human body. This poses a challenge for RF and antenna design required for wireless operation. In this work, the radio interface design for a 2.4 GHz wireless sensor including a discrete filter balun circuit and an antenna operating at 0.3 mm distance from the body is presented. Thin, lightweight single-layer structure is realized using printed electronics manufacturing technology. The RF and antenna designs are validated by measurements, and a sensor with a fully functional radio interface is implemented and verified. At 0.3 mm from the body, 2.4 dB insertion loss and −10 dBi realized gain at 2.4 GHz were achieved for a discrete filter balun and antenna, respectively. The received power level on a Bluetooth low energy (BLE) channel was above −80 dBm at 1 m distance from the body, indicating capability for short-range off-body communications. The paper also provides guidelines for printed electronics RF and antenna design for on-body operation.

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