OLED Display-Integrated Optically Invisible Phased Arrays for Millimeter-Wave 5G Cellular Devices

Park, Junho; Choi, Jaehyun; Park, Dongpil; Kim, Myun-Soo; You, Chang‐Cheng; Jung, Doochan; Song, Insu; Lee, Jae‐Wook; Whang, Yong Nam; Lee, Yongha; Kang, Byounggwan; Hong, Wonbin

doi:10.1109/ims30576.2020.9223830

Cited by 7 publications

(1 citation statement)

References 8 publications

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“…Recently, work has been published which has mainly focused on the integration of optically transparent antennas into the new technology of the OLED light source either for the applications for Wi-Fi and Bluetooth connectivity [5] [6] or for 5G applications [7] [8]. All these studies and works show the applicability of optically transparent antennas in OLED light sources.…”

Section: Introductionmentioning

confidence: 99%

Design and Modeling of a Flexible Conductive Fabric Antenna Integrated in an OLED Light Source for WIMAX Wireless Communication Systems

Sekkal¹,

Canale²,

Halaoui³

et al. 2021

OPJ

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This work presents a new bendable antenna for worldwide interoperability for microwave access (WiMAX) wireless communication systems. These antennas, transparent and flexible, will be easily integrated into various media and in particular OLED lighting which could be part of the public lighting network of tomorrow as well as on all display media. The integration of these antennas as close as possible to the end-user is a possible solution to reduce the energy consumption which goes hand in hand with the increase in the data rate. This kind of new antenna, designed to be integrated in organic lightemitting diode (OLED), was modeled from a transparent VeilShieldTM conductive fabric and was placed on a 100% polyester substrate with a thickness of 1.5 mm and a loss tangent of 0.02. We have tested and evaluated the characteristic parameters of our antenna, namely the reflection coefficient, the radiation pattern and the gain, to find out the performance of our proposed design. The performance of the transparent conductive fabric integrated in the 100% polyester substrate is tested for the application of flexible antenna operating at 3.5 GHz with a gain value of 5.38 dB. We have integrated this proposed new antenna with the OLED light source containing four layers of different materials and electrical properties: aluminum cathode layer, polymer layer, indium tin oxide (ITO) anode layer and glass substrate layer. After integration, the resonant frequency shifted to 3.52 GHz with a gain value of 4.61 dB. In addition, we also tested the concave bending on the reflection coefficient of the proposed flexible antenna taking into account the different bending angles. This work demonstrates the possibility of integrating these unconventional materials used for the proposed antenna within the OLED despite

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Section: Introductionmentioning

confidence: 99%

Design and Modeling of a Flexible Conductive Fabric Antenna Integrated in an OLED Light Source for WIMAX Wireless Communication Systems

Sekkal¹,

Canale²,

Halaoui³

et al. 2021

OPJ

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24‐1: Invited Paper: Optically Invisible Antenna‐on‐Display (AoD) Technologies: Review, Demonstration and Opportunities for Microwave, Millimeter‐Wave and Sub‐THz Wireless Applications

Park

Kim

Hong

2021

Symp Digest of Tech Papers

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This paper provides a detailed overview of an optically invisible phased‐array antenna‐on‐display (AoD) technology for microwave, millimeter‐wave (mmWave), and sub‐THz wireless scenarios such as wireless communication, radar, sensing etc. The fundamental AoD configuration and stack‐up are introduced with numerical results, which proves the trade‐off relationship between optical transmittance and RF conductivity. A transverse magnetic patch antenna for Wi‐Fi and Bluetooth accessibility is implemented on the active display panel of a real‐life smartwatch device. The fully functional smartwatch prototype including the electromagnetic wrist phantom features a total radiation efficiency of 22% at 2.4 GHz. The optically invisible phased‐array AoD is fully integrated within the view area of high‐resolution OLED display panels of mmWave 5G NR cellular handsets. The fabricated cellular handset prototype including optically invisible beamforming AoD features optical transmittance of more than 88 % and beam scanning of ± 30° with the estimated maximum EIRP of 14.4 dBm. The over‐the‐air test confirms that the fabricated phased‐array AoD prototype satisfies the 3GPP's EVM performance requirement for 5G NR cellular devices. Future work collectively aims to serve as a catalyst for the emergence of future sub‐THz 6G mobile devices.

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A Design of Dual-polarized Metasurface Antenna Array Integrated with ITO Glass for 5G mmWave Applications

Li,

Zhang,

Zhu

et al. 2023

2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation (APCAP)

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OLED Display-Integrated Optically Invisible Phased Arrays for Millimeter-Wave 5G Cellular Devices

Cited by 7 publications

References 8 publications

Design and Modeling of a Flexible Conductive Fabric Antenna Integrated in an OLED Light Source for WIMAX Wireless Communication Systems

Design and Modeling of a Flexible Conductive Fabric Antenna Integrated in an OLED Light Source for WIMAX Wireless Communication Systems

24‐1: Invited Paper: Optically Invisible Antenna‐on‐Display (AoD) Technologies: Review, Demonstration and Opportunities for Microwave, Millimeter‐Wave and Sub‐THz Wireless Applications

A Design of Dual-polarized Metasurface Antenna Array Integrated with ITO Glass for 5G mmWave Applications

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