Publication

A Compact Tunable Meta-Filter for X/Ku Band Power Applications

2025

Abstract

Based on Locally Resonant Metamaterials (LRMs), we present a tunable two-pole meta-filter for X/Ku-band power applications, demonstrating continuous reconfiguration from 9.6 to 12.3 GHz via a standard WR75 transition and an adjustable meta-port. Four tuning states yield relative bandwidths ranging from 6.7% to 13.2% with insertion loss ≤ 0.1 dB. Power handling capabilities were investigated using SPARK3D simulations, revealing thresholds rising from 64 kW at 9.6 GHz to 120 kW at 12.3 GHz. Experimental results will be presented during the conference.

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2025

Abstract

Official source

Related concepts (11)

Acoustic metamaterial

An acoustic metamaterial, sonic crystal, or phononic crystal is a material designed to control, direct, and manipulate sound waves or phonons in gases, liquids, and solids (crystal lattices). Sound wave control is accomplished through manipulating parameters such as the bulk modulus β, density ρ, and chirality. They can be engineered to either transmit, or trap and amplify sound waves at certain frequencies. In the latter case, the material is an acoustic resonator.

Microwave

Microwave is a form of electromagnetic radiation with wavelengths ranging from about 30 centimeters to one millimeter corresponding to frequencies between 1000 MHz and 300 GHz respectively. Different sources define different frequency ranges as microwaves; the above broad definition includes UHF, SHF and EHF (millimeter wave) bands. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 0.3 m and 3 mm). In all cases, microwaves include the entire SHF band (3 to 30 GHz, or 10 to 1 cm) at minimum.

Metamaterial antenna

Metamaterial antennas are a class of antennas which use metamaterials to increase performance of miniaturized (electrically small) antenna systems. Their purpose, as with any electromagnetic antenna, is to launch energy into free space. However, this class of antenna incorporates metamaterials, which are materials engineered with novel, often microscopic, structures to produce unusual physical properties. Antenna designs incorporating metamaterials can step-up the antenna's radiated power.

Related publications (1)

A Compact Tunable Meta-Filter for X/Ku Band Power Applications

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