Polarization Filter for Microstrip Lumped-Element Kinetic Inductance Detectors

被引：2

作者：

Gomez, A. ^{[1
]}

Calvo, M. ^{[2
,3
]}

Goupy, J. ^{[2
,3
]}

Bideaud, A. ^{[2
,3
]}

Levy-Bertrand, F. ^{[2
,3
]}

Catalano, A. ^{[4
]}

Benoit, A. ^{[2
,3
]}

Tartari, A. ^{[5
]}

Monfardini, A. ^{[2
,3
]}

机构：

[1] Ctr Astrobiol CSIC INTA, Ctra Torrejon Ajalvir Km 4, Madrid 28850, Spain

[2] CNRS, Inst Neel, F-38042 Grenoble, France

[3] Univ Grenoble Alpes, F-38042 Grenoble, France

[4] Univ Grenoble Alpes, CNRS, Grenoble INP, LPSC IN2P3, F-38000 Grenoble, France

[5] INFN, Sez Pisa, Largo B Pontecorvo 3,Edif C, I-56127 Pisa, Italy

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2018年 / 193卷 / 3-4期

关键词：

Lumped-element kinetic inductance detectors; Polarization; Cosmic microwave background radiation; NIKA2;

D O I：

10.1007/s10909-018-2021-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polarization sensitivity is a major requirement in future cosmic microwave background studies. Even though lumped-element kinetic inductance detectors (LEKIDs) have already demonstrated a good performance in the millimeter range, the typical configuration based on linear meander inductors exhibits a cross polarization up to 30%. In this work, we propose a new configuration of LEKIDs coupled to a microstrip transmission line where the continuous ground plane has been replaced with parallel lines in order to be used as a polarizing grid. Microwave simulations and preliminary experiments show that the polarizer acts as an effective ground plane with no influence in the electromagnetic performance and that the cross polarization can be decreased to 3%.

引用

页码：157 / 162

页数：6

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