.png){kind=icon}
返回
RF Multi-Functional Input-Reflectionless Dispersive-Delay Structure With Sharp-Rejection Filtering Using Channelization Techniques
.png){kind=icon}
PRE
AI
DOI：10.1109/TCSII.2022.3228391.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A class of RF multi-functional input-reflectionless dispersive-delay structure (DDS) with linear-type in-band group-delay variation and sharp-rejection bandpass-filtering capability is reported. It exploits a two-branch-channelized/balanced-type circuit with similar low-order reflective DDS units inside its channels, which are connected through input/output $\boldsymbol {3}$ -dB quadrature wideband couplers. The adopted DDS unit is based on a coupled-resonator network with a frequency-dependent cross-coupling. It introduces a pair of complex transmission zeros (TZs) to shape the intended in-band group-delay profile. Unequal transmission-line-based phase-shifting sections are also inserted at the outputs of both channels. In this manner, an input-absorptive behavior and selectivity enhancement with TZ generation are attained by means of transversal signal-interference techniques at the overall input and output nodes, respectively. Moreover, as the transfer-function phase term of the interference action in transmission is linear with frequency, the total group-delay pattern is defined by the DDS unit of the channels. As practical validation, a 1.5-GHz proof-of-concept microstrip prototype is constructed and tested.
Keyword:
Radio frequency
Band-pass filters
Transversal filters
Delays
Resonator filters
Couplings
Shape
Absorptive filter
bandpass filter
channelized filter
coupling-matrix synthesis
dispersive-delay structure (DDS)
frequency-dependent coupling
group delay
microstrip filter
planar filter
reflectionless filter
RF-analog-signal processing
signal interference
transmission zero (TZ)
transversal filter
期刊
I
IF:
4.9
论文数:
8.8K
被引数:
2.5W
机构
引用论文
Treatment Individualization Using Pharmacokinetic Studies and Joint Ultrasound Imaging in Pediatric Patients With Hemophilia利用药代动力学研究和关节超声成像对血友病儿科患者进行个体化治疗
PREAI
分享收藏The Molecular Basis of the β-Ketoacyl-ACP Synthase FabH in Catalyzing C-C Bond Formation of Acetoacetyl-ACPβ-酮酰基-ACP合成酶FabH催化乙酰乙酰-ACP C-C键形成的分子基础.png)
ACS CATALYSIS
ACS CATALYSISIF13.1
PREAI
分享收藏分享收藏
查看更多内容