Permittivity and permeability determination for high index specimens using partially filled shorted rectangular waveguides
نویسندگان
چکیده
منابع مشابه
Optimization Techniques for Permittivity and Permeability Determination
This paper discusses optimization techniques for the determination of complex permittivity and permeability in transmission lines. The traditional theoretical model using scattering parameters is extended into a mathematical regression model that can be solved with widely accepted numerical techniques. This new model produces accurate primary mode results for the samples tested including nonmag...
متن کاملCharacterization of Complex Permittivity Properties of Materials in Rectangular Waveguides Using a Hybrid Iterative Method
In many microwave applications, an accurate knowledge of the complex permittivity properties of materials is usually required. A new procedure for the accurate determination of these properties is presented, based on an optimization algorithm that makes use of measured scattering parameters and simulated results of a cylindrical rod of dielectric material passing completely through a rectangula...
متن کاملDual Band Shorted Rectangular Microstrip Antenna
The compact rectangular microstrip antenna is realized by placing the shorting post or plate along the zero field line at the fundamental mode of the patch. The dual band antenna is realized by placing the stub on the edges of the patch. In this paper, first a compact shorted rectangular microstrip antenna is discussed. Further a dual band antenna realized by placing the stub on the opposite ed...
متن کاملAutomated Measurement of Complex Permeability and Permittivity at High Frequencies
The paper reports here on the reflection frequency-domain measurements to determine the selected electromagnetic properties of materials using an Agilent 8714ET Network analyzer. The measurement process as well as results evaluation are performed by means of computer control. For this purpose, a VEE program (Agilent technology) has been developed. The discussion concerning the optimisation of m...
متن کاملArtificial Neural Network Model for Suspended Shorted Rectangular Microstrip Antennas
The bandwidth in half wave or quarter wave length microstrip antennas is increased by using suspended configuration in which the radiating patch is suspended above the ground plane of finite air gap. While using thicker substrate, a closed form expressions for calculating edge extension length due to the fringing fields in shorted patch, is not available. In this paper, an artificial neural net...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Microwave and Optical Technology Letters
سال: 2016
ISSN: 0895-2477
DOI: 10.1002/mop.29786