JQL Technologies

Company Profile

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JQL Electronics Inc, is a technology company, designing and manufacturing microwave passive components and subsystems, such as ferrite isolator/ circulators, directional couplers, power divider, combiners, ceramic filters waveguide components and solid state power amplifiers. With cutting edge design capabilities and world class manufactures, JQL delivers innovative design, precise manufacturing, fast delivery and dedicated customer service to the customers. No design is too challenge, no Job is too big or small, and no customer is too little.

Contact Information:

Contact: Jack Zhu
Title: Managing Director
Phone: 1(888) 236-9828 Ext 601
Fax: (630) 823-2902


JQL Technologies
1225 Armour Blvd
Mundelein IL 60060
United States

Isolators & Circulators

coaxial isolators and circulatorsJQL's heritage of coaxial isolator and circulator with 300+ designs offers broadband, high power, low PIM solutions to the customers. JQL designs and manufactures the coaxial isolators and circulators from 100 MHz up to 50 GHz.

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Surface-mount Isolators/Circulators

SurfaceMount IsolatorsSecond generation of surface-mount (SMT II) isolators and circulators, with frequency ranging from 800 MHz to 3.8 GHz. The SMT II devices are designed for low IMD application, PCB application, with very compact package and soldering reflowing durability. Minimum isolation is 20 dB, maximum insertion loss 0.35 dB, -75 dBc IMD with custom design available upon request.

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