Low-loss microwave dielectric material

Details Low-loss microwave dielectric material Low-loss microwave dielectric material

1983-05-18

1984-12-11

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

264 65, 264 66, C04B 3500

Patent

active

044878427

ABSTRACT:
A low-loss microwave dielectric material comprising a sinter of a mixture of a perovskite type structure compound oxide comprising singly or mainly Ba(Zn.sub.1/3 Ta.sub.2/3)O.sub.3 and Ba(Mg.sub.1/3 Ta.sub.2/3)O.sub.3 with a small amount of Mn. Mn addition not only favorably affects sinterability to lower the required sintering temperature but also advantageously heightens the unloaded Q factor of the resulting sinter in an SHF band.

REFERENCES:
patent: 3464785 (1969-09-01), Galasso
patent: 3673119 (1972-06-01), Ueoka et al.
patent: 4121941 (1978-10-01), Kawashima et al.
patent: 4353047 (1982-10-01), Noguchi et al.
Nomura, S. et al., "Effect of Mn Doping on Ceramics with a Low-Loss and a High Dielectric Constant in X Band"--Japanese Applied Physics Ass'n Conference (Apr. 1982) Paper 2a-I-4, p. 763.

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