scholarly journals Microwave Resonant Cavities for Sensing Moisture and Mass of Single Seeds and Kernels

2005 ◽  
Author(s):  
A.W. Kraszewski ◽  
S.O. Nelson
Keyword(s):  
Resonant Cavities ◽  
Single Seeds

Analysis on Resonant Cavities of 231GHz EIA with Trapezoid Subwavelength Holes

2020 ◽  
Author(s):  
Yu Ji ◽  
Zongjun Shi ◽  
Ziqiang Yang ◽  
Feng Lan
Keyword(s):  
Resonant Cavities

Implementation of tunable resonators in planar groove gap waveguide technology

2021 ◽  
pp. 1-7
Author(s):  
Titus Oyedokun ◽  
Riana H. Geschke ◽  
Tinus Stander
Keyword(s):  
Printed Circuit Board ◽  
Tuning Range ◽  
Frequency Tuning ◽  
Resonant Cavity ◽  
Circuit Board ◽  
Resonant Cavities ◽  
Tunable Resonators ◽  
Simulation Strategy ◽  
Dc Bias ◽  
Continuous Frequency

Abstract We present a tunable planar groove gap waveguide (PGGWG) resonant cavity at Ka-band. The cavity demonstrates varactor loading and biasing without bridging wires or annular rings, as commonly is required in conventional substrate-integrated waveguide (SIW) resonant cavities. A detailed co-simulation strategy is also presented, with indicative parametric tuning data. Measured results indicate a 4.48% continuous frequency tuning range of 32.52–33.98 GHz and a Qu tuning range of 63–85, corresponding to the DC bias voltages of 0–16 V. Discrepancies between simulated and measured results are analyzed, and traced to process variation in the multi-layer printed circuit board stack, as well as unaccounted varactor parasitics and surface roughness.

scholarly journals Unconventional time-bandwidth performance of resonant cavities with nonreciprocal coupling

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Ivan Cardea ◽  
Davide Grassani ◽  
Jeremy Upham ◽  
Sebastian A. Schulz ◽  
Kosmas L. Tsakmakidis ◽  
...  
Keyword(s):  
Resonant Cavities
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