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Variable Notch Antenna Patterns
Author(s) -
Biggs Albert W.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds196836599
Subject(s) - wedge (geometry) , antenna (radio) , physics , excitation , perpendicular , geometry , plane (geometry) , optics , mathematics , telecommunications , computer science , quantum mechanics
Results of antenna pattern measurements of a notch antenna are presented for variable notch lengths and different modes of notch excitation. The notch is an open slot normal to the edge of a 12° metallic wedge. Antenna patterns of the Es component are measured in perpendicular planes with the intersection line coincident with the notch axis. The E θ component in the φ = 180° plane is compared with analytical expressions for a notch cut in a semi‐infinite conducting sheet. The excitation modes, V ( x ), in the analytical notch expressions are V o cos kx , V o sin kx , V o e ikx , and V o e −ikz . The experimental verification of the assumptions in the analytical formulations is very good.