50.0 – 110.0 GHz Frequency Operation
10 dB Coupling
Frequency Sensitivity: ±1.8 dB
1.0-mm Female Connectors
Custom Designs Available
KRYTAR’s new directional coupler, Model 1500110010, offers some of widest frequency coverage using on the market. This new directional coupler maintains flat 10 dB coupling across a wide 100-GHz bandwidth. The new directional coupler lends itself to wireless designs and many test and measurement applications for emerging mmWave and 5G markets.
This new coupler further expands the KRYTAR family of directional couplers offering superior coupling performance of 10 dB, ±1.8 (with respect to output) and achieves frequency sensitivity (amplitude flatness) of typically ±1.8 dB. It provides directivity of at least 7 dB. For applications requiring multiple couplers on multiple channels, such as high-frequency antenna beamforming systems, the unit-to-unit coupling tolerance (coupling consistency from unit to unit) is also quite good, within ±1.50 dB across the full bandwidth from 50 to 110 GHz. KRYTAR’s technological advances provide excellent operating performance of this new stripline design unit. The coupler exhibits Insertion Loss of 5.5 dB (max.) across the full frequency range including coupled power. Maximum VSWR is 2.5:1 at any port, Input Power Rating is 20 Watts Average and 3 kW Peak. Operating Temperature is -54°C to +85°C.
This new directional coupler is in an extremely compact package which measures only 1.55 inches (L) x 0.38 inches (W) x 0.80 inches (H). With the standard 1.0-mm SMA female connectors the coupler weighs just 1.2 ounces.
KRYTAR’s coupler is uniquely designed for systems applications where external leveling, precise monitoring, signal mixing or swept transmission and reflection measurements are required. KRYTAR couplers offer solutions for many applications including electronic warfare (EW), commercial wireless, SATCOM, radar, signal monitoring and measurement, antenna beam forming, and EMC testing environments. For many space-restricted applications the compact size makes KRYTAR directional couplers ideal solutions. The directional coupler can also be manufactured to meet ridged military specifications.
KRYTAR also offers complete engineering services for custom designs that meet or exceed critical performance and/or packaging specifications.
Microwave Frequency Bands
|Band Designation||Frequency Range (GHz)|
|UHF||300 MHz - 1.0 GHz|
|L||1.0 - 2.0|
|S||2.0 - 4.0|
|C||4.0 - 8.0|
|X||8.0 - 12.0|
|DBS||12.2 - 12.7|
|Ku||12.0 - 18.0|
|K||18.0 - 26.5|
|Ka||26.5 - 40.0|
|Q||30.0 - 50.0|
|U||40.0 - 60.0|
|V||50.0 - 75.0|
Couplers are passive microwave components used for distributing or combining microwave signals. Directional couplers are four-port circuits where one port is isolated from the input port.
The coupled port on a microstrip, or stripline directional coupler, is closest to the input port because it is a backward wave coupler. On a waveguide broadwall directional coupler, the coupled port is closest to the output port because it is a forward wave coupler.
VSWR is defined as the ratio of the maximum voltage to the minimum voltage in standing wave pattern along the length of a transmission line structure. It varies from 1 to (plus) infinity and is always positive.
Insertion Loss is the net unrecoverable power in dB dissipated within the circuit at any frequency within the specified range.
Frequency Sensitivity is the amount of frequency change in the carrier frequency per unit amplitude change in the message signal.
For more information on Krytar's Couplers please see below:
- KRYTAR Coupler Featured in Microwaves & RF Magazine
- Microwave or RF Amplifier Test Setup
- Krytar Directional Couplers: Term Definitions, Testing, and Typical Applications.
- Coaxial Coupler and Directional Detector Sample 2 to 40 GHz - Microwaves & RF article, May 1987
- Krytar Directional Coupler 2 – 50 GHz