Low Noise Amplifiers

18 GHz to 100 GHz Narrowband or broadband frequency coverage Coaxial and waveguide versions MMIC-Based

The HLNA Series of Low Noise Amplifiers covers the range from 18 - 100 GHz, with partial coverage up to 100 GHz. A wide variety of gain and bandwidth combinations are available to provide the designer with a solution for most applications. MMIC technology is employed for high reliability and repeatability.

The amplifiers can be used as gain blocks in LO chains and test equipment, and to lower system noise figure in communication and radar systems.

Noise figures as low as 2.2 dB and 1 dB compression points as high as +18 dBm can be obtained. Multiple stages can be combined to increase gain. For example, gain of 40 dB has been obtained over 50-60 GHz.

LNA’s can be combined with power amplifiers for greater P1dB output power levels. Amplifiers can be integrated with mixers and other components for custom applications.

Datasheets

Low Noise Amplifiers

Power Amplifiers and Power Combiners

8 GHz to 100 GHz Narrowband or broadband frequency coverage Coaxial and waveguide versions MMIC-Based

The HMPA and HHPA Series of Medium Power Amplifiers cover the range from 8 - 100 GHz. A wide variety of gain and bandwidth combinations provide the designer with a solution for most applications. Output power at 1 dB compression up to +30 dBm and beyond is available. MMIC technology is employed for high reliability and repeatability.

The amplifiers can be used as gain blocks in LO chains and test equipment, and in transmitters for communication and radar systems.

Custom designs are available and in most cases, NRE is not required. Multiple stages can be combined to increase gain. Gain of 40 dB has been obtained over 50-60 GHz. Driver amps can be combined with power amplifier stages to obtain high gain, high P1dB output power amplifiers.

The amplifiers can be integrated with mixers and other components to form custom sub-assemblies for specific applications.

Each power amplifier contains a voltage regulator and bias sequencing circuitry allowing the use of a single bias to power the unit.

Datasheets

MPA/HPA Data Sheet
60 GHz 1/2 Watt HPA Data Sheet
60 GHz 3/4 Watt HPA Data Sheet

Mixers and Detectors

Balanced Mixers

18 GHz to 110 GHz Narrowband or broadband frequency coverage

The HBM series broadband balanced mixers cover the waveguide bands from 18 - 110 GHz. They utilize a low loss structure mated to a matched pair of GaAs Schottky beam lead diodes for minimum conversion loss and maximum bandwidth. Superior LO noise suppression and LO-RF isolation values are inherent design features.

Biased versions are available for use with lower LO drive levels. Options include IF Amplifiers, LO frequency multipliers and Gunn local oscillators. An integrated assembly with an IF amplifier and a Gunn local oscillator with isolator can also be provided. An upconverter version of this mixer is available as series HBUC.

Datasheets

Balanced Mixers

Balanced Upconverters

18 GHz to 110 GHz Narrowband or broadband frequency coverage

The HBUC series broadband balanced upconverters cover a wide range of waveguide bands from 18 - 110 GHz. They utilize a low loss structure mated to a matched pair of GaAs Schottky beam lead diodes for minimum conversion loss and maximum bandwidth. Superior LO noise suppression and LO-RF isolation values are design features. Upconverters are used to create a mmwave signal by combining a lower RF frequency with a higher mmwave frequency. Dual signals, or double sideband are produced in this way: LO ± IF (DSB). Optional RF filters are offered to filter out the unwanted sideband and produce a single sideband (SSB) up converter. Biased versions are available for lower LO drive levels.

Datasheets

Balanced Upconverters

Harmonic Mixers

18 GHz to 110 GHz Full waveguide band coverage Wide range of available LO and IF frequencies

The HHM series broadband harmonic mixers cover full waveguide bands from 18 - 110 GHz. They utilize a low loss finline structure mated to a GaAs Schottky beam lead diode for minimum conversion loss and maximum bandwidth. The millimeter wave RF frequency is down converted (using a low cost microwave LO) to a lower frequency which can in turn interface with a spectrum analyzer or frequency counter.

Two terminal mixers (waveguide RF, combined coaxial LO/IF port) units are available for systems equipped with an internal diplexer.

Three terminal mixers (waveguide RF, coaxial IF port, coaxial LO port) units are available for systems without an internal diplexer.

Datasheets

Harmonic Mixers

Broadband Detectors

18 GHz to 110 GHz Full waveguide band frequency coverage Miniature designs available

The HFD series broadband detectors cover full waveguide bands from 18 - 110 GHz . They utilize a low loss finline structure mated to a zero bias Schottky beam lead diode for maximum output and bandwidth. The RF energy is converted to a DC voltage resulting in a detector mount having high levels of sensitivity over a broad dynamic range. Since zero bias diodes are used, no bias is required and both negative and positive voltage outputs are available. The HFD series detectors are used wherever DC conversion of RF signals is required such as with scalar measurement systems.

Detectors can be optimized for specific frequency coverage and can be matched as pairs if required.

Datasheets

Broadband Detectors

Frequency Multipliers

Active Multipliers

18 GHz to 98 GHz High output power available X2, X3 and higher order multipliers

The HAFM Series of active multipliers is available in models ranging from 18 - 140 GHz. A wide variety of multiplication factors from X2 up to X12 provide the customer with design flexibility for many applications. These multipliers can be cascaded to achieve higher order multiplication factors.

Active multipliers are often used in LO chains in radars and communication systems, allowing the use of frequency sources at low frequencies. Multipliers also find use as frequency extenders for test equipment.

Standard units are available that can be driven with 10 mW or less. Outputs to 0.5 W are obtained with P-HEMT and abrupt varactors. Isis stacked varactors are used for higher drive levels from 500 mW to several watts. Power outputs of 2 W @ 35 GHz, 300 mW @ 50 GHz, and 100 mW @ 94 GHz have been obtained.

Datasheets

Active Frequency Multipliers

Broadband Multipliers

18 GHz to 110 GHz Up to full band frequency coverage X2, X3 and higher order multipliers

The HMM Series Multipliers cover the range from 18 - 100 GHz. A wide variety of doubler and tripler designs provide the designer with a solution for many applications. Full waveguide band units are available through 100 GHz. These multipliers are used as frequency extenders in test equipment and as mixer LO’s. Standard units are available to be driven with 10-40 mW and high power options are available for 100 mW drive. No DC bias is required.

The HMM Series Multipliers use a pair of GaAs beam lead diodes on a planar circuit mounted in a low loss waveguide structure. Their high bandwidths and small size make them an ideal choice in sub-systems.

Datasheets

Broadband Frequency Multipliers

Gunn Oscillators and VCO’s

7 GHz to 100 GHz models Up to 400 milliwatt output power Mechanical and varactor tuning available

The HGM and HGV series Gunn Oscillators cover the range from 7 - 100 GHz. A wide variety of designs provide the designer with a solution for most applications to meet customer specific requirements. Units are available with mechanical and electrical tuning and both mechanically tuned and varactor tuned designs are available with wide tuning bandwidths. Superior frequency and power stability are achieved using cavity design and diode selection. Heaters can be provided to achieve greater frequency stability.

Cavity designs are mated with the proper Gunn diode to maximize performance. Gunn oscillators are used as sources for mixer LO’s, to drive multipliers, transmitters, and radars. Options include voltage regulators, hybrid heaters, isolators, heat sinks, and thermal barriers.

Datasheets

Gunn Oscillators and VCO

Switches and Attenuators

PIN Diode Switches

18 GHz to 110 GHz Full band versions available On/off ratios to 50 dB Fast switching times SPST, SPDT and multi-throw models

The HSW series of broadband PIN Diode switches covers the waveguide bands from 18 - 110 GHz. They utilize a low loss finline structure with silicon or GaAs beam lead diodes for minimum insertion loss and maximum isolation. Superior performance in a compact size is featured in these designs. Gold plated housings are used to achieve maximum performance and reliability. Full waveguide bands are covered up to 60 GHz.

Many options of on/off ratio values are offered with low loss versions and isolation levels up to 50 dB. Switches are available with or without drivers with TTL drivers standard and ECL drivers available as an option.

Datasheets

PIN Diode Switches

High-Power PIN Diode Switches

18 GHz to 45 GHz Full band versions available Fast switching times SPST, SPDT and multi-throw models

The HSWM series of broadband high power switches covers the waveguide bands from 18 - 80 GHz. They utilize a low loss microstrip structure using GaAs MMICs for high RF power handling and low insertion loss. Superior performance in a compact size are featured in these designs. Gold plated housings are used to achieve maximum performance and reliability.

Switches are available in SPST, SPDT, SP3T and SP4T configurations. Power handling at 35 GHz is 1 watt nominal up to several watts. Both waveguide and coax versions are available.

Many options of on/off ratio values are offered with low loss versions and isolations up to 50 dB. Switches are available with or without drivers with TTL drivers standard and ECL drivers available as an option.

Datasheets

High-Power PIN Diode Switches

PIN Diode Attenuators

18 GHz to 110 GHz Full band versions available Up to 50 dB Attenuation Range

The HVA series broadband PIN diode attenuators cover the waveguide bands from 18 - 110 GHz. The attenuators are available for applications requiring variations in power levels using a control voltage. A 0 to +5 V tuning range is used to control the attenuation level. This design utilizes a low loss finline structure with silicon beam lead diodes for minimum insertion loss and optimum attenuation flatness.

Superior performance in a compact size are features of this design. Gold plated housings are used to achieve maximum performance and reliability. Full waveguide bands are covered up to 60 GHz.

Many options are offered with low loss and isolation levels up to 50 dB. Standard attenuation values include 10, 15, 20, 30, 40 and 50 dB.

Datasheets

PIN Diode Attenuators

Isolators and Circulators

18 GHz to 110 GHz Compact designs

The HMI and HMC series broadband ferrite junction isolators and circulators are available from 18 - 110 GHz. They utilize a low loss H-plane structure in a modified Y-junction format to provide minimum loss with maximum isolation and bandwidth. 2 GHz bandwidths with 20 dB of isolation are standard.

The isolators are commonly utilized to buffer mismatches and are often used on amplifier and oscillator outputs. Circulators are commonly employed as signal duplexers on transceivers having a single antenna. The in-line port orientation makes the mechanical interface more accessible than standard Y-junction types. An access pocket allows for blind flange mating.

Datasheets

Waveguide Ferrite
Coaxial and Drop-In Ferrites

Custom Components and Sub-Assemblies

HXI can draw upon its extensive standard component library as the basis for custom components and integrated sub-assemblies. For new circuit and component designs, modern microwave CAD tools are used to ensure efficient performance tradeoffs, design analysis, optimization and design centering. SolidWorks is employed to complete the design package. Our engineering staff works closely with customers to determine and prioritize system 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. Our broad experience allows us to assume system integration tasks, freeing customer resources for other aspects of product development.

Datasheets

Custom Components and Sub-Assemblies
Integrated Assemblies Brochure