Chip antenna

Details Chip antenna Chip antenna

1997-06-05

1999-08-03

Font, Frank G.

Communications: radio wave antennas

Antennas

With radio cabinet

343895, H01Q 124, H01Q 136

Patent

active

059331160

ABSTRACT:
A miniature chip antenna suitable for use in low-frequency-band mobile communications is disclosed. The chip antenna has a rectangular-prism-shaped base member provided with a mounting surface. Disposed within the base member is a conductor spirally wound along the height of the base member. The base member is formed from e.g., ferrite comprising Ni--Zn having a relative magnetic permeability of 7. The conductor is made from a metal comprising, e.g., Cu, Ni, Ag, Pd, Pt, or Au, and is formed by printing, depositing, laminating or plating. The base member and the conductor are then integrally sintered. A conductor having a rectangular cross section and spirally wound along the height of the base member is thus formed within the base member.

REFERENCES:
patent: 5290589 (1994-03-01), Clough et al.
patent: 5767811 (1998-06-01), Mandai et al.
Computers and Communications Technology Toward 2000, Seoul, Aug. 25-28, 1987, vol. 3, Aug. 25, 1987, Institute of Electrical and Electronics Engineers, pp. 1337-1341, XP000611342 Gosh, S.K. et al. "Microstrip Antenna on Ferrimagnetic Substrates in the Very High Frequency Range" p. 1339, col. 1, p. 1340, col. 2; table 1.
IEEE Transactions On Antennas and Propagation, vol. 41, No. 2, Feb. 1, 1993, pp. 230-233, XP000303632 Mishra, R.K. et al. "Tuning of Microstrip Antenna on Ferrite Substrate" p. 232, col. 1.
Electronics Letters, Oct. 9, 1980, U.K. vol. 16, No. 21, ISSN 0013-5194, pp. 817-818, XP002040689 Das, N. et al. "Microstrip Rectangular Resonators on Ferrimagnetic Substrates" pp. 817-818.
IEEE Transactions On Antennas an Propagation, Jan., 1983, USA vol. AP-31, No. 1, ISSN 0018-926X, pp. 188-190, XP002040690 Das, N. et al. "Circular Microstrip Antenna on Ferrimagnetic Substrate" p. 188.
Patents Abstracts of Japan, vol. 018, No. 311 (E-1561), Jun. 14, 1994 & JP 06 069057 A (Taiyo Yuden Co. Ltd), Mar. 11, 1994-Abstract-.
Wireless World, Sep. 1977, UK, vol. 83, No. 1501, ISSN 0043-6062, pp. 47-48, XP002040691 Thoday R.D.C "Band II Ferrite Aerial Unit" p. 47, paragraph 3.

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