Help with RF Waveguide Couplers specifications:
Type and Style
Back to Top
|
| ||
| Type | |||
| Your choices are... | |||
| Unidirectional | The single directional coupler is a 3-port device that has a main line input and output and a coupled line that has a coupled output and an internal termination on the 4th port. Power passing from input to output is coupled to the coupled output and any reflected power from the main line output is coupled to the termination. The coupled output is thus isolated from the main output. A uni-directional coupler has the reverse coupled port internally terminated. | ||
| Bidirectional | The bi-directional coupler is a 4-port device identical to the uni-directional coupler, but with the termination removed from the 4th port. Main line power is coupled to the forward output of the secondary line and reflected power is coupled to the reflected output. It must be noted that for isolation to be attained, coupled outputs must be obtained through well-matched terminations at each port. A bidirectional coupler is not internally terminated at the reverse coupled port. It is intended to allow the transmission of forward and reflected signals. | ||
| Dual Directional | The dual directional coupler is a 4-port device that is constructed of 2 single directional couplers described above. They can either be connected back-to- back in series, with the main line output of the forward coupler connected to the output of the second coupler, or integrated into one device with a single main line and 2 secondary lines. The advantage of this integration is a more compact unit (shorter), and because there is only one main line, insertion loss is less and higher isolation is more easily attained. | ||
| Other | Other unlisted coupler types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
| Style | |||
| Your choices are... | |||
| Standard | Standard couplers are couplers with two terminals. Normally these couplers are made of straight waveguide sections. | ||
| Crossguide | Crossguide couplers have two branches with four terminals. | ||
| Loop | Loop couplers are a special type of coupler normally used in antennas. A coaxial connector serves are one of the terminals. | ||
| Multihole | A waveguide directional coupler with more than one output. It can be used to measure the microwave energy traveling through a waveguide system. | ||
| Other | Other unlisted or proprietary coupler style. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Waveguide Specifications
Back to Top
|
|
| ||
| Waveguide Material | |||
| Your choices are... | |||
| Aluminum | Waveguides are made of aluminum. | ||
| Brass | Waveguides are made of brass. | ||
| Bronze | Waveguides are made of bronze. | ||
| Copper | Waveguides are made of copper. | ||
| Silver | Waveguides are made of silver. | ||
| Other | Other unlisted materials. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
| Type / Style Flange 1 | |||
| Your choices are... | |||
| UG | Union guide (UG) is the military standard MIL-DTL-3922 for a range of flange types. | ||
| CMR | CMR flanges are miniature versions of connector pressurized rectangular (CPR) flanges. | ||
| CPRG | CPRG flanges are grooved versions of connector pressurized rectangular (CPR) flanges. | ||
| CPRF | CPRF flanges are flat versions of connector pressurized rectangular (CPR) flanges. | ||
| Cover or Plate | Cover or plate flanges are square, flat UG style flanges. | ||
| Choke | Chokes flanges are UG style flanges with an o-ring groove and a choke cavity. | ||
| Other | Other unlisted flange types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
| Type / Style Flange 2 | |||
| Your choices are... | |||
| UG | Union guide (UG) is the military standard MIL-DTL-3922 for a range of flange types. | ||
| CMR | CMR flanges are miniature versions of connector pressurized rectangular (CPR) flanges. | ||
| CPRG | CPRG flanges are grooved versions of connector pressurized rectangular (CPR) flanges. | ||
| CPRF | CPRF flanges are flat versions of connector pressurized rectangular (CPR) flanges. | ||
| Cover or Plate | Cover or plate flanges are square, flat UG style flanges. | ||
| Choke | Chokes flanges are UG style flanges with an o-ring groove and a choke cavity. | ||
| Other | Other unlisted flange types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
| Flange Profile | |||
| Your choices are... | |||
| Rectangular | Flanges are rectangular. | ||
| Square | Flanges are square. | ||
| Circular | Flanges are circular. | ||
| Other | Other unlisted flange shapes. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
| Flange Plating | |||
| Your choices are... | |||
| Non-plated | Flanges are not plated. | ||
| Cadmium | Flanges have cadmium plating. | ||
| Nickel | Flanges have nickel plating. | ||
| Rhodium | Flanges have rhodium plating. | ||
| Silver | Flanges have silver plating. | ||
| Tin | Flanges have tin plating. | ||
| Other | Other unlisted plating material or type. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Performance
Back to Top
|
|
| |||||||||||
| Operating Frequency Range: | The frequency range for which the device will meet all guaranteed specifications. | |||||||||||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | |||||||||||
| ||||||||||||
| EIA Waveguide Size (WR) | Waveguide sizes are approved by the Electronic Industry Alliance (EIA). | |||||||||||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | |||||||||||
| ||||||||||||
| VSWR | Voltage standing wave ratio (VSWR) is a unit less ratio ranging from one to infinity, expressing the amount of reflected energy at the input or output of the device. A value of one indicates that all of the energy will pass through, while any other value indicates that a portion of the energy will be reflected. | |||||||||||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | |||||||||||
| ||||||||||||
| Coupling: | A measure that gives the amount by which the signal in the main guide is greater than that coupled to the secondary waveguide. | |||||||||||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | |||||||||||
| ||||||||||||
| Directivity: | A measure of the ratio between the power coupled to the secondary guide, for signals traveling in the two possible directions along the main guide. | |||||||||||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | |||||||||||
| ||||||||||||
| Length | This is the waveguide length or height. | |||||||||||
| Search Logic: | All matching products will have a value greater than or equal to the specified value. | |||||||||||
| ||||||||||||
| Tables: | ||||||||||||
| ||||||||||||
| ||||||||||||
