This article presents the design of ultra-wideband (UWB) true-time-delay lines (TTDLs) operating in microwave frequency.The design is inspired by the use of composite right/left-handed transmission line (CRLH TL) unit cells as the true-time-delay elements to obtain large time delay. A ...
内容提示: FEW-MODE FIBER TRUE TIME DELAY LINES Sergi Garcia, Ruben Guillem and Ivana Gasulla, Senior Member, IEEE ITEAM Research Institute, Universitat Politècnica de València, 46022 Valencia, Spain e-mail: sergarc3@iteam.upv.es ABSTRACT Space-division multiplexing optical fibers can provide ...
We demonstrate photonic crystal waveguide true-time-delay lines fabricated on a large area (>2cm × 2cm) silicon nanomembrane transferred onto a glass substrate. The photonic crystal waveguides are designed to provide large time delay values within a short length. 17.1 μm × 10 μm subwavelength...
The results are good references to design theoptical true time delaylines. 利用强度 频率混合调制模型研究了基于色散器件的光真延时线中色散导致的延时误差的变化规律。 3) true time delay(TTD) 光学真延时 4) optical controlled true time delay
true-time delay lines (TTDL);delay-bandwidth product (DBW);radio frequency micro-electromechanical system (RF MEMS) switch;delay variation (DV);phased arrays 1. Introduction In recent years, the development of true-time delay lines (TTDL) has been promoted primarily by their usefulness in replaci...
The results are good references to design the optical true time delay lines. 利用强度 频率混合调制模型研究了基于色散器件的光真延时线中色散导致的延时误差的变化规律。4) time delay simulation 延时仿真5) group delay distortion 群时延失真 1. This paper expounds the group delay distortion problem...
Moreover, compared to conventional wavelength-variable delay lines with a few THz operation bandwidth, our index-variable OTTDL has an extremely broad operation bandwidth practically exceeding several tens of THz, which supports operation for various input optical signals with broad ranges of central ...
机译:用于相控阵天线的紧凑型宽带5位光子实时延时模块 获取原文 获取原文并翻译 | 示例 开具论文收录证明 >> 页面导航 摘要 著录项 相似文献 摘要 Photonic true-time-delay (TTD) lines offer many advantages over their electronic counterparts and are attracting more and more research effort. We demonstrat...
The input signal is a 10 GHz pulse train and as such, there will be spectral lines separated by 10 GHz (~0.08 nm) in the corresponding optical spectrum [Fig. 2(g), black trace]. On the other hand, the output is a 4-bit sequence, i.e., a sequence of 4 pulses each ...
The technique can scale to a large number of wideband true-time-delay lines, with continuously tunable programmable delay. Results demonstrate multiple true-time-delay elements with independent tuning control and verify the concept by tuning the free spectral range of a microwave photonic notch filter...