一个新的紧的宽带波器,基于一个合级阻抗共振器
Abdel-Fattah A Sheta1, Ibrahim Elshafiey1
1Electrical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia.
Micromachines
|February 24, 2024
概括
一种新型的紧宽带过器利用一步阻抗共振器 (SIR) 为通信和雷达系统提供了灵活性. 这种设计实现了宽止带和可调节带宽,满足了下一代微波电路的需求.
科学领域:
- 电气工程 电气工程
- 微波工程 微波工程
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 现代通信和雷达系统需要紧和宽带的过器.
- 现有的过器设计通常面临尺寸,带宽和停止带性能方面的限制.
- 阶段阻抗共振器 (SIR) 提供了小型化和增强过特性的潜力.
研究的目的:
- 引入和验证一个新的紧宽带过器,基于短路合的阶段阻抗共振器 (SIR).
- 为了证明过器在实现可调节带宽的灵活性,用于各种应用.
- 为了验证该设计是否适用于需要尺寸紧性的下一代微波电路.
主要方法:
- 为拟议的SIR共振器衍生出分析溶液,以预测性能.
- 使用CST微波工作室设计和模拟1.23GHz的紧型双合短路SIR过器.
- 使用罗杰斯RT/duroid 6010.2LM材料制造四个共振器过器,并进行实验验证.
主要成果:
- 该SIR共振器可实现紧的尺寸和广泛的止带响应.
- 增加SIR的阻抗比将延长止带,并减少整体长度.
- 实现的波器实现了29.4%的相对带宽,以1325 MHz为中心,输入损失为1.3dB.
结论:
- 拟议的短路合SIR波器设计通过模拟和实验结果进行验证.
- 该结构提供了灵活性,实现了5%至50%的相对带宽.
- 该组件显示了下一代微波电路的巨大潜力,这些电路需要灵活性和紧性.
相关概念视频
01:24Characteristics of Series Resonant Circuit
257
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
257
01:17Series Resonance
180
The RLC circuit impedance is defined as the ratio of the supply voltage to the circuit current. Resonance in such a circuit occurs when the imaginary part of this impedance equals zero. This specific condition means that the inductive reactance is exactly equal to the capacitive reactance. The frequency at which this happens is known as the resonant frequency. Mathematically, the resonant frequency is inversely proportional to the square root of the product of the inductance (L) and capacitance...
180
01:17Design Example: Underdamped Parallel RLC Circuit
292
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
Starting with a fixed...
292
01:23Design Example
329
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
329
01:23Parallel Resonance
209
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
209
01:26Resonance in an AC Circuit
2.1K
The property of an inductor makes it resist any change in the current passing through it, while the property of a capacitor is to build up the charge across its terminals. Hence, if an inductor and capacitor are connected in series, they have opposite effects on the relative phase between current and voltage. The current through the circuit undergoes forced oscillation at the frequency of the source. The resistance term in an R-L-C circuit acts as a damping term because power is dissipated...
2.1K