Browsing by Author "FUH, KF"

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COMPLEX LEAKY WAVES OF A PARTIALLY OPEN NONRECIPROCAL SLOTINE ON GYROMAGNETIC SUBSTRATE
(1994)
TZUANG, CKC
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FUH, KF
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MROZOWSKI, M
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傳播研究所
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Institute of Communication Studies
MAGNETICALLY SCANNABLE MICROSTRIP ANTENNA EMPLOYING A LEAKY GYROMAGNETIC MICROSTRIP LINE
(1995-08-03)
FUH, KF
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TZUANG, CKC
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交大名義發表
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電信工程研究所
;
National Chiao Tung University
Rigorous full-wave spectral-domain analyses of a magnetically scannable gyromagnetic microstrip leaky-wave antenna are presented. Varying the DC magnetic bias field by similar to 6.5%, the maximum radiation angle of the leaky-wave antenna, measured from the horizon, shifts from zero to almost 90 degrees.
THE EFFECTS OF COVERING ON COMPLEX WAVE-PROPAGATION IN GYROMAGNETIC SLOTLINES
(1995-05-01)
FUH, KF
;
TZUANG, CKC
;
交大名義發表
;
傳播研究所
;
National Chiao Tung University
The evolution of complex leaky waves in partially open gyromagnetic slotlines into complex modes in a shielded slotline is presented, Given a particular stratified gyromagnetic slotline with two sidewalls present, four types (Types I-TV) of guided structures are defined and investigated, depending upon the four possible combinations of top and bottom covers, The behavior of the complex solutions is discussed for the partially open gyromagnetic slotlines, Initially, the slotline of Type I, which lacks both top and bottom covers, shows that no coupling exists among various pairs of leaky waves, By adding only a top cover into Type I, the resultant slotline of Type II exhibits certain coupling between different sets of leaky waves, Similarly, by adding only a bottom cover into Type I, the resultant slotline of Type III shows that certain strong leaky waves of Types I and II now become weak leaky waves, From these numerical experiments, we deduce that the complex modes supported by Type IV, which is completely shielded, can be the result of the mode coupling of the two previously found leaky waves in Types II and IlI waveguides, respectively, Therefore, the formation of complex modes in Shielded slotline is related to the effects of covering on mode coupling of the various leaky waves of the partially open slotlines.