Frequency invariant interferometry

The authors discuss frequency-independent phase comparison interferometry as a method of direction finding. Theoretical relationships are derived that show the electrical phase between two elements of an array can remain approximately constant over frequency. The theory is developed for log-periodic...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 1992-05, Vol.34 (2), p.86-92
Main Authors: Musselman, R.L., Norgard, J.D.
Format: Article
Language:English
Subjects:
Bandwidth
Directive antennas
Exact sciences and technology
Frequency
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Interferometers
Interferometry
Log periodic antennas
Optical instruments, equipment and techniques
Phase measurement
Phased arrays
Physics
Receiving antennas
Testing
Wideband
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The authors discuss frequency-independent phase comparison interferometry as a method of direction finding. Theoretical relationships are derived that show the electrical phase between two elements of an array can remain approximately constant over frequency. The theory is developed for log-periodic dipole arrays. Design and fabrication of a two-element interferometer using log-periodic antennas are discussed. Experimental results are presented which show that this array remains frequency independent over a three-octave bandwidth.< >
ISSN:0018-9375
1558-187X
DOI:10.1109/15.135620