超微型容量负载合规频率选择性超表面用于S,C和X频段应用
Haider Ali1, Laeeq Riaz1, Bilal Tariq Malik2
1Electrical and Computer Engineering Department, COMSATS University Islamabad, Park Road, Islamabad, Pakistan.
Scientific reports
|July 2, 2025
概括
本研究介绍了一种适合合合规应用的紧,灵活的频率选择性元表面 (FSMS). 新的设计实现了宽带性能和可重新配置的共振,使其能够在各种频段中使用.
科学领域:
- 电磁学 电磁学 电磁学 电磁学
- 材料科学 材料科学 材料科学
背景情况:
- 超表面具有独特的电磁性质.
- 合规应用需要灵活和低调的设计.
研究的目的:
- 开发一个灵活的,低档次的频率选择性超表面 (FSMS),在10GHz振.
- 为了实现一个紧的单位元素 (UE) 尺寸和宽带传输响应.
主要方法:
- 引入了一次性电容器,以增强元素间电容.
- 设计了一个单层FSMS,具有电容负载结构.
- 通过调整元素间电容器来研究重新配置性.
主要成果:
- 实现了一个非常紧的FSMS,带有95%的分数带宽 (1.2GHz到3.1GHz).
- 在合规应用下表现出稳定的响应和高角度稳定性.
- 对于不同的包装角度展示了极化不敏感性.
结论:
- 拟议的容量装载FSMS可实现小型化和宽带操作.
- 该设计可用于各种共振频率进行重新配置.
- 紧而稳定的FSMS适用于S,C和X带包装应用.
更多相关视频
15:25Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
6.2K
16:01An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
Published on: September 24, 2017
10.6K
相关概念视频
Capacitor With A Dielectric
4.2K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
4.2K
Spherical and Cylindrical Capacitor
6.0K
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells have equal and opposite charges of +Q and −Q, respectively. For an isolated conducting spherical capacitor, the radius of the outer shell can be considered to be infinite.
Conventionally, considering the symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
Conventionally, considering the symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
6.0K
Design Example: Capacitance Multiplier Circuit
976
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
976
MOS Capacitor
990
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
990
