Accession Number:

AD0272534

Title:

A FERRITE UHF PHASE-SHIFTER

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

• NIFANT'YEVA,F.P.

Report Date:

1962-02-01

Pagination or Media Count:

1.0

Abstract:

A description is giv n of a uhf phase-shifter which varies the phase of an ou put signal from 0 to 360 degrees by varying the longitudinal magnetic field applied to the ferrite from 0 to 250 oersteds. The phase-shifter is of simple design and has comparatively small dimensions. It consists of a coaxial spiral line with the ferrite inside it. The input and output of the line are made in the form of a 75-ohm coaxial cable plug. Inside the spiral line are two ferritic cores. A two-layer winding of PEL-1 25 wire in a water jacket is wound on the outer cylinder of the coaxial spiral line for the purpose of creating a magnetic field. The line attenuation and the phase shift w re measured at a fr uency of 150 Mc. The characteristics of the phase- ifter are such that w en the gnetic field varies from 0 to 250 oersteds, the phase shift of the signal amounts to 360 degrees, and the attenuation decreases from 12 to 3.2 db. Author

Descriptors:

• *COAXIAL CABLES
• *MAGNETIC CORES
• *MICROWAVE EQUIPMENT
• *PHASE SHIFT CIRCUITS
• ATTENUATION
• DIELECTRICS
• FERRITES
• HELIXES
• MAGNETIC FIELDS
• MEASUREMENT
• RADIO RECEIVERS
• RADIO SIGNALS
• RADIO TRANSMITTERS
• TRANSMISSION LINES
• ULTRAHIGH FREQUENCY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE