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All figures (12)
Figure 1. Geometries of E-plane and H-plane junctions of waveguide circulators. Dotted line = Electric field intensity.
Figure 5. Radius of the dielectric resonator at different frequencies.
Figure 6. S-parameters of single-band E-plane circulator. Dimensions: d = 3.5mm, r = 3.38mm, ferrite: TTVG-930 and internal bias: H0 = 10 Oe.
Figure 2. Schematics of two applications for LH-RH dual-band Eplane circulator.
Table 2. Ferrite shape optimization (∆f (dual band frequency deviation), I (Isolation), IL (Insertion Loss), RL (Return Loss), f0 (Center Frequency)) (M means a relative maximum and m means a relative minimum).
Table 1. Ferrite material parameters optimization (∆f (dual band frequency deviation), I (Isolation), IL (Insertion Loss), RL (Return Loss), f0 (Center Frequency)), (M means a relative maximum and m means a relative minimum).
Figure 7. Shape optimization of the triangular ferrite.
Figure 8. S-parameters of dualband E-plane circulator. Dimensions: d = 3.5mm, r = 3.38mm, ferrite: TTVG-930 and internal bias: H0 = 10 Oe.
Table 3. Commercial ferrite parameters used in the final designs.
Figure 9. S-parameters of dualband E-plane circulator. Dimensions: d = 3.5mm, r = 4.55mm, ferrite: Y331 and internal bias: H0 = 10Oe.
Figure 4. Geometries of two kinds of ferrite placement in the waveguide junction.
Figure 3. Physical geometry of the triangular ferrite posts and the dielectric filling around them.
Journal Article
•
DOI
•
A New Dual-Band High Power Ferrite Circulator
[...]
Hadi Razavipour
,
Reza Safian
1
,
Gholamreza Askari
,
Faezeh Fesharaki
,
Hamid Mirmohammad Sadeghi
- Show less
+1 more
•
Institutions (1)
Isfahan University of Technology
1
01 Jan 2009
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Progress in Electromagnetics Research C