Fiber-Based RF Phased Array Antennas

Phased array antenna systems are crucial in applications that require directional control and modulation of radio-frequency signals, such as telecommunications, radar, and broadcasting. The increasing demand for flexible electronics is driven by the need for devices that can adapt to different forms and environments while maintaining performance. Traditional antennas often lack this flexibility, limiting their use in scenarios that require conformability. The conventional approach to antenna design focuses on rigid structures that are difficult to integrate into nonplanar surfaces and can be damaged by environmental stress. This rigid design restricts their application in dynamic or mobile settings where the shape of the antenna could play a vital role. There is thus a significant need for antenna systems that can maintain high performance while being flexible enough to fit various platforms without being constrained by the shape of the supporting structure.

Technology Description

The invention details a flexible thermally drawn receive phased array antenna system constructed using polyetherimide (PEI) fiber material to enhance pliability and durability. It consists of multiple antenna elements and integrated low-noise amplifiers (LNAs), which are beneficial for signal clarity and strength. An innovative aspect includes the encapsulation of the critical components within the fiber, with electrical wires also enclosed to provide a DC bias to the LNAs. The array's dipole antenna elements are designed to function at ultrahigh frequencies (UHF), providing a wide range of applications. This flexibility introduces a transformative capability for the antenna system because it can conform to various surfaces and shapes. This characteristic stands out compared to traditional rigid phased array antennas, thereby allowing for more versatile installation options and potentially more inconspicuous deployment in various environments.