MATRIX REPRESENTATION OF MULTI-LOADED CIRCULAR LOOP ANTENNAS.
Abstract
Studies are made of both the driving-point impedance and the amplitude and phase distributions of the current in a circular loop which is driven by an arbitrary number of delta-function generators and loaded with an arbitrary number of lumped impedances. The only restriction imposed in the present treatment is that the elements (either generator or load) are spaced at equal intervals of 2 pi/m b along the circumference where m is the total number of elements and b is the radius of the loop. The numerical calculations include loads with negative resistances in order to take account of loops loaded with an element like an Easki tunnel diode, with proper precautions against both self-oscillation and switching effects. A study of such precautions is to be considered separately. Extensive computations have been carried out for loops loaded with a single resistor at phi = pi or phi = pi/2 as well as loops with two resistors at phi = 2 pi/3 and -2 pi/3. The resistances used ranged from - 100 through 100 ohms; the sizes of the loops from beta b = 0.2 to 2.4, where beta is the real part of the propagation constant k. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 18, 1963
- Accession Number
- AD0600460
Entities
People
- Keigo Iizuka
Organizations
- Harvard University