HXI designs and manufactures millimeter wave components and subsystems to support military and commercial systems worldwide. Fast prototyping services and custom-engineered products ranging from single functions to highly integrated assemblies are provided. Standard products include low noise and power amplifiers, mixers, frequency multipliers, switches and ferrite-based products in a core frequency range of 18 to 110 GHz. Custom products have included transceivers for UAV and helicopter landing systems, as well as radio links at 60 and 71-76 GHz.

Company History

HXI was founded in Woburn, Massachusetts as Harmonix Corporation in 1992 to develop 60 GHz radios for short range data communications. In 1998, the company moved to North Andover, MA and also began offering millimeter wave components & subsystems to selected government contractors, subcontractors and educational institutions.

In 2002, Terabeam Corporation, a free space optics (FSO) Manufacturer, acquired Harmonix for its 60 GHz radios. In 2003, Terabeam added resources to market and expand the Harmonix millimeter wave components & subsystems capability worldwide under the Terabeam/HXI name. Today, HXI continues to operate and has absorbed assets from the original Terabeam, as well as from Telaxis, another acquisition.

Facilities and Equipment

HXI is located in a 17,000 square foot facility in Haverhill, Massachusetts. This location provides engineering and manufacturing space for millimeter wave components & subsystems, as well as for our millimeter wave radios. We maintain equipment for substrate attachment, solder and epoxy deposition, soldering, semi-automatic pick and place of epoxy-mount components, plasma cleaning, gold wire and ribbon bonding and bond pulling. Test equipment includes network analyzers, synthesized signal generators, spectrum analyzers and scalar analyzers, as well as high speed oscilloscopes, power and noise measurement equipment. Temperature plates and chambers, as well as a humidity chamber and burn-in center facilitate the environmental and reliability testing of our products.

Technology/Engineering

The HXI engineering team (eight senior engineers) has an average of 25 years experience, specifically in MMW technology and products, but also in the volume manufacturing of these products. Among the products developed by these engineers are landing system transceivers, missile seekers, automotive radar front ends, 18 to 38 GHz point-to-point radio front ends, complete 60 GHz and E-Band radios (GigaLink), radiometers, test sets, ELINT receivers and weather radar components. Military programs have included TALS, SADARM, Longbow, HDR, MilStar, FAB-T, MIMIC and many others.

On the system level, our engineering staff works closely with customers to determine and prioritize performance tradeoffs and to identify the appropriate product configuration to meet cost and performance goals. A working knowledge of radar and communications systems allows HXI to understand and address the affects of complex problems and subtle component performance and interaction issues.

Catalog Components

HXI offers a broad range of standard catalog components for use in prototyping new systems and for low volume requirements. These components consist of single function modules that can be easily connected using waveguide or coax. The modules use mature technology such GaAs MMICs and beam lead semiconductor devices, resulting in well established performance characteristics. The use of many common parts results in low cost and fast delivery.

Custom Components and Subsystems

HXI can draw upon its extensive catalog component library as the basis for custom components and integrated subassemblies. For new circuit and component designs, modern microwave CAD tools are used to ensure efficient performance tradeoffs, design analysis, optimization and design centering. Mechanical design tools such as AutoCAD and SolidWorks are employed to complete the design package.

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•Catalog: Millimeter-Wave Components
•HXI Company Introduction

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