Claims
- 1. A low loss leakage transmission line comprising: a cylindrical dielectric tube having a wall thickness d.sub.2 defined by: ##EQU7## where: .epsilon..sub.1 is the dielectric constant of the space internal to the tube,
- .epsilon..sub.2 is the dielectric constant of the tube,
- .lambda..sub.0 is the wavelength of the supported electromagnetic waves in free space, and
- n is a positive odd integer.
- 2. A low loss leakage transmission line comprising: a cylindrical dielectric tube; and a loss layer disposed around the outer surface of said tube, wherein the wall thickness d.sub.2 of said tube is defined by: ##EQU8## where: .epsilon..sub.1 is the dielectric constant of the space internal to the tube,
- .epsilon..sub.2 is the dielectric constant of the tube,
- .lambda..sub.0 is the wavelength of the supported electromagnetic waves in free space, and
- n is a positive odd integer.
- 3. A low loss leakage transmission line as claimed in claim 1 or 2, wherein said cylindrical dielectric tube comprises a plurality of cylindrical dielectric tubes of different dielectric constants coaxially arranged in laminated form, the wall thickness d.sub.i of each of said plurality of cylindrical dielectric tubes being defined by ##EQU9## where .epsilon..sub.i is the dielectric constant of the respective ones of said plurality of dielectric tubes.
- 4. A low loss leakage transmission line as claimed in claim 2, wherein said cylindrical dielectric tube comprises a plurality of cylindrical dielectric tubes of different dielectric constants coaxially arranged in laminated form, the wall thickness d.sub.i of each of said plurality of cylindrical dielectric tubes being defined by ##EQU10## where .epsilon..sub.i is the dielectric constant of the respective ones of said plurality of dielectric tubes; and wherein said loss layer is disposed around an outermost one of said dielectric tubes.
- 5. The low loss leakage transmission line of claim 1 or 2, further comprising an outer metal tube.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54-91822 |
Jul 1979 |
JPX |
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BACKGROUND OF THE INVENTION
This application is a continuation-in-part of application Ser. No. 170,232, filed July 18, 1980, now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
170232 |
Jul 1980 |
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