A wideband liquid antenna with high optical transparency for ultra‐high‐definition television applications

Abstract

In this letter, an optically transparent and wideband liquid antenna for UHD‐TV applications is presented. The proposed antenna utilizes a high concentration of dissolved salts as the conductor inside a hollow L‐shaped clear acrylic component, offering very high optical transparency of more than 87% (@200 ppt) in the visible range. The electrical performance of the antenna is optimized and verified through experiments, showing good agreement between the simulation and the measurement. The results show that the antenna has a wide bandwidth of 390 MHz (410–800 MHz; 64.5%) and high radiation efficiency of up to 72% over the entire bandwidth range for UHD‐TV applications (470–771 MHz; 48.4%). This demonstrates the proposed antenna can be considered as an attractive alternative to conventional external transparent antennas for UHD‐TV applications.

A broadband transparent antenna applied in indoor mobile communication system

“…It achieves perfect integration with the surrounding environment, therefore it overcomes the problem that the traditional metal antenna affects the visual experience and reduces the aesthetics. 1,2 With the advent of the 5G era, there are many available frequency bands for mobile communication systems, such as GSM380, CDMA850, GSM900, DCS1800, PCS190, UMTS, LTE2300, LTE2500, and N78, which require antennas to have broadband characteristics. 3 Therefore, a broadband transparent antenna with a simple structure and stable performance applied to indoor mobile communication will have a wide application prospect.…”

“…It has become a research hotspot for indoor antennas due to its characteristics of easy conformality, concealment, high optical transparency, and good conductivity. It achieves perfect integration with the surrounding environment, therefore it overcomes the problem that the traditional metal antenna affects the visual experience and reduces the aesthetics 1,2 …”

Optically Transparent Patch Antennas Using Saltwater for WLAN Applications

“…Currently, optically transparent antennas applications are considerably attractive not only in both theoretical researches but also in practical applications owing to their transparency [1,2]. The existing optical transparent antennas generally have solid metallic transparent electrodes (TEs) [3][4][5][6][7][8][9][10].…”