Title (en)

WAVEGUIDE

Publication

EP 0246561 A3 19881117 (DE)

Application

EP 87107005 A 19870514

Priority

DE 3617143 A 19860522

Abstract (en)

[origin: EP0246561A2] According to the invention, a waveguide is provided with a fin projecting into the cavity, the profile of which fin is selected such that a higher mode natural wave is excited so that a virtually constant phase difference response is permitted for a desired phase difference over a useful bandwidth which is as wide as possible. <IMAGE>

IPC 1-7

H01P 1/161; H01P 1/17

IPC 8 full level

H01P 1/161 (2006.01); H01P 1/17 (2006.01)

CPC (source: EP)

H01P 1/161 (2013.01); H01P 1/173 (2013.01)

Citation (search report)

• [A] GB 663889 A 19511227 - MARCONI WIRELESS TELEGRAPH CO
• [A] US 2546840 A 19510327 - TYRRELL WARREN A
• [A] US 4356459 A 19821026 - GOULD HARRY J, et al
• [A] US 3758882 A 19730911 - MORZ G
• [A] US 2774067 A 19561211 - BOLLINGER WALDON P
• [A] INTERNATIONAL JOURNAL OF ELECTRONICS, Band 53, Nr. 2, August 1982, Seiten 101-128, Taylor & Francis Ltd, Basingstoke, Hampshire, GB; R.J. DEWEY: "Circularly polarized elliptical beamshape horn antennas"

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0246561 A2 19871125; EP 0246561 A3 19881117; DE 3617143 A1 19871126; DE 3617143 C2 19900726

DOCDB simple family (application)

EP 87107005 A 19870514; DE 3617143 A 19860522