New MMIC Quadrature Hybrids, IQ Mixers, & IQ/IR/SSB Mixer Application Note

Courtesy of Marki Microwave : New MMIC Quadrature Hybrids, IQ Mixers, & IQ/IR/SSB Mixer Application Note

Marki continues to lead the industry in quadrature coupler technology with two new product releases and a new IQ/SSB/IR Mixer Basics Application Note

 

New MQH and MQS MMIC Quadrature Hybrids and Splitters

Marki is expanding our line of MMIC quadrature hybrids (the MQH series) and quadrature splitters (the MQS series) with six new products in the S, C, X, and Ku bands. Each model is available as a bare die or in a connectorized module, and all offer excellent phase and amplitude balance over unprecedented bandwidths in a small form factor.

MQH products are true quadrature hybrids in the sense that all four ports are identical, making them suitable for all quad hybrid applications including reflectionless filters, reflective phase shifters, reflective variable attenuators, balanced amplifiers, Butler matrices, and of course IQ, image reject, and single sideband mixers (on either the LO or IF port).

 

Product Page Datasheet Frequency
Band[GHz]
Coupling

[dB]

Amplitude Balance

[dB]

Phase Balance

[Degrees]

Isolation

[dB]

MQH-2R58R5 pdf 2.5 to 8.5 3 ±0.4 ±3 23
 MQH-3R510 pdf 3.5 to 10 3 ±0.4 ±1.5 25
MQH-0517 pdf 5 to 17 3 ±0.5 ±6 23

MQS products are quadture splitter/combiners. They are best used in a single configuration (with port 1 as the input) and offer broader bandwidths with the same excellent phase balance. However, they are not as good in reflective applications. They are still suitable for use in IQ/IR/SSB mixers and other applications where a single quadrature split or combination is required.

MQS-0218: Excellent Phase Balance from 2-18 GHz

Product Page Datasheet Frequency
Band[GHz]
Coupling

[dB]

Amplitude Balance

[dB]

Phase Balance

[Degrees]

Isolation

[dB]

MQS-0209 pdf 2 to 9 3 ±0.5 ±3 16
MQS-0218 pdf 2 to 18 3 ±1 ±3 17
MQS-0418 pdf 4 to 18 3 ±0.4 ±0.5 11

 

New Surface Mount MMIQ Mixers

The best IQ mixer line in the world, the MMIQ series, is expanding again with the addition of the MMIQ-0626HSM and MMIQ-0520HSM. These high barrier diode IQ mixers offer improved IP3, P1dB, and spurious suppression to their low barrier counterparts, the MMIQ-0626LSM and MMIQ-0520LSM. They are the surface mount version of the bare die MMIQ-0626HCH and MMIQ-0520HCH. They are excellent choices for high dynamic range IQ mixers for test and measurement applications.

 

 

New IQ, Image Reject, and Single Sideband

Mixer Primer

Operation of IQ, image reject, and single sideband mixers are among the most difficult concepts for RF and Microwave engineers to understand. Further, these mixers provide advantages in dynamic range (improvements in linearity, reduction in noise) that are not widely recognized.

Following the wide success of our Mixers Basics Primer, Balun Basics Primer, and Power Divider & Directional Coupler Primer, the new IQ, Image Reject, and Single Sideband Mixer Primer from Marki seeks to educate RF and Microwave engineers in the theory, operation, and benefits of using these mixers in advanced system design.

 

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