Publication

High-Power Ku-Band Narrowband Subwavelength Locally Resonant Metamaterial Filter for Space Applications

2026

Abstract

This paper presents a high-power Ku-band subwavelength bandpass filter based on a volumetric locally resonant metamaterial (LRM) waveguide topology, targeting compact narrowband filters for space applications. The structure consists of a rectangular waveguide loaded with a small number of periodically arranged metallic pins operating below the cutoff frequency of the host guide. Hybridization between the evanescent TE10 mode and the local resonances creates a slow, subwavelength guided mode and a hybridization bandgap (HBG), which are exploited to synthesize a three-pole Ku-band filter with sharp selectivity and reduced footprint. The multipactor (MP) behavior is assessed using full-wave simulations combined with SPARK3D analysis and ECSS-compliant TEEY models (gold material) showing a MP threshold of 19 kW, well above typical requirements for satellite payloads and substantially higher than a reference Ku-band filter from the prior art.

Official source

https://infoscience.epfl.ch/entities/publication/79572959-8ccd-4d4a-9734-9de4d900d068

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2026

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/79572959-8ccd-4d4a-9734-9de4d900d068

About this result

Related concepts (32)

Waveguide filter

A waveguide filter is an electronic filter constructed with waveguide technology. Waveguides are hollow metal conduits inside which an electromagnetic wave may be transmitted. Filters are devices used to allow signals at some frequencies to pass (the passband), while others are rejected (the stopband). Filters are a basic component of electronic engineering designs and have numerous applications. These include selection of signals and limitation of noise.

Circulator

In electrical engineering, a circulator is a passive, non-reciprocal three- or four-port device that only allows a microwave or radio-frequency signal to exit through the port directly after the one it entered. Optical circulators have similar behavior. Ports are where an external waveguide or transmission line, such as a microstrip line or a coaxial cable, connects to the device. For a three-port circulator, a signal applied to port 1 only comes out of port 2; a signal applied to port 2 only comes out of port 3; a signal applied to port 3 only comes out of port 1, and so on.

Nuclear magnetic resonance spectroscopy

Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei. This spectroscopy is based on the measurement of absorption of electromagnetic radiations in the radio frequency region from roughly 4 to 900 MHz. Absorption of radio waves in the presence of magnetic field is accompanied by a special type of nuclear transition, and for this reason, such type of spectroscopy is known as Nuclear Magnetic Resonance Spectroscopy.

Related publications (18)

High-Power Ku-Band Narrowband Subwavelength Locally Resonant Metamaterial Filter for Space Applications

Chat with Graph Search

Up to 16% Optical Carbon‐13 Hyperpolarization of Donor–Acceptor Molecules at 14.1 T

Suppressing parasitic processes in frequency-degenerate photon pair generation via cascaded up- and down-conversion in thin film lithium niobate

Z-shaped waveguides using complete band gaps in magnonic crystals of yttrium iron garnet and a copper hole array