Slot antennas for measurement of properties of dielectrics at microwave frequencies

1999 ◽  
Author(s):  
H.G. Akhavan
Keyword(s):  
Slot Antennas ◽  
Microwave Frequencies

scholarly journals Multi–Frequency Analysis For Interstitial Microwave Hyperthermia Using Multi–Slot Coaxial Antenna

2015 ◽  
Vol 66 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Piotr Gas
Keyword(s):  
Thermal Therapy ◽  
Microwave Antenna ◽  
Human Tissues ◽  
The Finite Element Method ◽  
Bioheat Equation ◽  
Slot Antennas ◽  
Hyperthermia Treatment ◽  
Microwave Frequencies ◽  
Symmetrical Model ◽  
Microwave Hyperthermia

Abstract The presented paper shows a new concept of multi-slot coaxial antenna working at different frequencies to predict the best solution for interstitial microwave hyperthermia treatment. The described method concerns a microwave heating of unhealthy cells using a thin microwave antenna located in the human tissue. Therefore, the coupled wave equation in a sinusoidal steady-state and the transient bioheat equation under an axial symmetrical model are considered. The 4-Cole-Cole approximation has been used to compute the complex relative permittivity of the human tissues at different antenna operating frequencies. At the stage of numerical simulation the finite element method (FEM) is used. Special attention has been paid to estimate the optimal antenna parameters for thermal therapy for three microwave frequencies mainly used in medical practice and make comparison of the obtained results in the case of single-, double- and triple-slot antennas.

Design of New Multiband Slot Antennas for Wi-Fi Devices

2019 ◽  
Vol 9 (5) ◽  
pp. 334
Author(s):  
Zuhair Shakor Mahmood ◽  
Ali Najdet Nasret ◽  
Attallah Younis Awed
Keyword(s):  
Slot Antennas

Novel approach to the production of band branching filters for microwave frequencies

1975 ◽  
Vol 11 (1) ◽  
pp. 10 ◽  
Author(s):  
D.E.N. Davies ◽  
A.Y. Niazi ◽  
D. Lamensdorf
Keyword(s):  
Microwave Frequencies ◽  
Novel Approach
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