What is a flange in a waveguide?
A waveguide flange is a connector for joining sections of waveguide, and is essentially the same as a pipe flange—a waveguide, in the context of this article, being a hollow metal conduit for microwave energy.
What is Choke flange?
[′chōk ‚flanj] (electromagnetism) A waveguide flange having in its mating surface a slot (choke) so shaped and dimensioned as to restrict leakage of microwave energy within a limited frequency range.
What is the use of waveguide?
A waveguide is an electromagnetic feed line used in microwave communications, broadcasting, and radar installations. A waveguide consists of a rectangular or cylindrical metal tube or pipe. The electromagnetic field propagates lengthwise. Waveguides are most often used with horn antenna s and dish antenna s.
What are waveguide corners?
a section of waveguide in which the direction of the longitudinal axis changes abruptly NOTE – The waveguide corner is sometimes referred to as a waveguide bend but this practice is deprecated.
What is the minimum bend radius of any waveguide?
1 dB bend losses of as low as 1 mm have been reported by Keio University for multimode graded index polymer waveguides fabricated by Sumitomo Bakelite using a photoaddressing method, but typically 10 mm is a safe minimum bend radius for most current materials for both mutimode and singlemode waveguides.
Why waveguides are used in high frequency?
Wave guides conduct microwave energy at lower loss than coaxial cables. Waveguides are practical only for signals of extremely high frequency, where the wavelength approaches the cross-sectional dimensions of the waveguide. Below such frequencies, waveguides are useless as electrical transmission lines.
What is bend in waveguide?
Waveguide bends are used to direct high frequency signals propagating through a waveguide in a specific direction. These bends allow the change in direction of a signal within a waveguide, with minimal loss, reflection and distortion of the electric and magnetic fields.
What frequency do waveguides use?
Waveguides are often used at microwave frequencies (greater than 300 MHz, with 8 GHz and above being more common). Waveguides are wideband devices, and can carry (or transmit) either power or communication signals.
Why do we need waveguides?
Need for Waveguides During the case of high frequencies; it seen that there is loss of electromagnetic waves in transmission lines. This is mainly because of the factors like radiation leakage and conduction resistance. To solve this problem waveguides are widely used.
What types of waveguide flanges are available?
www.flann.com119 • Most waveguide flange types are available from WG6 (WR650) to WG32 (WR3) • Special waveguide flanges can be supplied to order Waveguide Flanges, General Information
Are choke flanges recommended for broadband waveguide equipment?
Note: Choke flanges are not recommended for broadband waveguide equipment. Details of the “Standard Flanges” as fitted to Flann products are shown on Pages 113 to 118. Double Ridge Flange Definitions:C = Cover Flange, G = Grooved : 1 = Tap and Clear, 2 = All Tapped, 3 = All Clear : A = Aluminium, B = Brass.
What is a contact flange?
Contact flanges are used when high power and low VSWR are required. The flanges are machined with a raised inner edge that guarantees a reliable connection of the surfaces. The design also uses a raised outer edge to limit the flexing of the flange to a preset force value.
What does C1 mean on a flange?
Double Ridge Flange Definitions:C = Cover Flange, G = Grooved : 1 = Tap and Clear, 2 = All Tapped, 3 = All Clear : A = Aluminium, B = Brass. All instruments will be fitted with C1 flanges as standard. Flanges and flange hardware- quotations for standard and special flanges are available on request.
