Evidence map›Paper›PMID 38610343›Full record

ArticleSensors (Basel, Switzerland)2024

Design and Implementation of C-Band Large-Power Planar Butler Matrix in SRS.

Jinfeng Li, Liping Yan, Changjun Liu, He Bai, Wanzhao Cui

Open access · goldAbstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 34% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jinfeng LiThe School of Electronics and Information, Sichuan University, Chengdu 610064, China.
Liping YanThe School of Electronics and Information, Sichuan University, Chengdu 610064, China.ORCID 0000-0002-1374-9665
Changjun LiuThe School of Electronics and Information, Sichuan University, Chengdu 610064, China.ORCID 0000-0003-0079-6793
He BaiNational Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi'an 710049, China.
Wanzhao CuiNational Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi'an 710049, China.ORCID 0000-0002-1636-2925
Sichuan University · CNChina Academy of Space Technology · CN

Funding

National Natural Science Foundation of China 62071316National Natural Science Foundation of China U22A2015
6 · The paper itself

Abstract

In satellite remote sensing (SRS), there is a demand for large-power microwave components. A Butler matrix is essential to a transmitting antenna array in SRS. This article illustrates the electrical and mechanical design, simulation, and test results of a large-power planar beamforming network for SRS at C-band. It is a 4 × 4 Butler matrix based on square coaxial lines. Short-ended stubs are used in the Butler matrix to broaden its bandwidth by 10%, support inner conductors, and enhance heat transfer in vacuum environments. The simulation results are consistent with the measured results. The reflection coefficient is less than -18 dB, and the isolation is more than 23 dB from 3.8 GHz to 4.2 GHz. The insertion losses are less than 0.6 dB, and the phase errors are better than ±6°. The measured peak microwave power of the proposed Butler matrix is 9 kW. Its size is 440 × 400 × 40 mm

Indexed as

Butler matrixmultipactorpower thresholdshort-ended stubssquare coaxial line

Identifiers

PMID38610343
PMCPMC11014046
OpenAlexW4393234875

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.