100-Watt Conductive Terminations

Originally designed for a commercial manufacturer of hardware for communications networks, these conduction-cooled terminations have been deployed in military communication systems; field and laboratory test environments as well as site tower applications. Model 551-199-100 features a SMA male connector and model 551-101-100 features a SMA female connector. Both devices are space saving 50 Ohm, DC-3 GHz, conduction cooled loads. The terminations mount to a customer provided heat sink; exhibit 1.25:1 maximum VSWR with an operating temperature range of -40℃ to +70℃.

Conductive terminations are attractive in applications where space is limited. Typically a traditional 100 Watt finned convection cooled termination is over 6 inches long, 3 inches wide and 3 inches high. Contrast that to a typical 100 Watt conduction cooled termination that is less than 1.5 inches long, less than 1.5 inches wide and less than 0.75 inches high.

Before using a conductive device in an application ambient temperature and available airflow must be considered. The case temperature of these devices must not exceed 100oC otherwise the thick film resistor inside the termination will likely be destroyed. Careful temperature calculations and heat dissipation strategies are a must for successful conductive termination implementation.

Often customers have adequate heat sinking available to mount conductive devices and operate them safely. Customers have also used a combination of heat sinking and fans to keep the device case temperature within operating parameters. Always use a thermal conductive compound between the conductive termination and heat sink for best results.

Another attractive feature of conductive terminations is their weight. Eliminating the aluminum fin heat sink used to dissipate heat of traditional convection cooled terminations yields significant weight reduction results. Typically a traditional 100 Watt finned convection cooled termination weighs 2 pounds or more versus a 100-Watt conduction cooled termination that typically weighs 2 ounces.

Finally, these lightweight conductive devices play an ergonomic role in the workplace. For example test fixtures that must be manually manipulated by a technician can be made lighter reducing the potential for heavy lifting injuries. A soldier carrying communication or jamming equipment on their back can experience a significantly lighter load reducing the potential for back injuries. Both examples provide a better ergonomic outcome without sacrificing power handling capability.

As RF and Microwave technology evolves there will no doubt be continued demand for smaller and lighter equipment. Performance sacrifices in the face of ever shrinking designs are unacceptable. Conductive terminations provide a small piece of the puzzle to achieve scalable solutions going forward.

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    RF Adapters

    FAKRA to SMA Adapters

    Attenuator Evolution!

    Is it an adaptor, attenuator, adap-tenuator, between series attenuator? Whatever you call them, BroadWave’s fixed attenuators have evolved! We have developed fixed attenuators that save money; take up less space and lower insertion loss by eliminating the need for adapters. Now you can order fixed attenuators with your connector configuration. Model 359-284-2R5 is a 50 Ohm, DC-2200 MHz, 2.5 dB, 1 Watt device with BNC male to SMA female connectors.

    These revolutionary fixed attenuators are available in any combination of BNC, F, N, SMA or TNC connectors. Standard impedances are 50 and 75 Ohm (custom impedances are available). Other designs feature 2, 30, 50, 100 and 150 Watts average power handling with frequency ranges up to 3 GHz. Check out some of the specifications on available models. Please contact us with your unique requirement for the appropriate model number.

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      80 dB Fixed Attenuator

      BroadWave Technologies has developed a new line of fixed attenuators. Model 352-276-080 is a 50 Ohm, 80 dB fixed attenuator with N connectors. This 1 Watt average unit operates from DC to 3000 MHz offers nominal attenuation accuracy of 1.75 dB and maximum VSWR is 1.40:1. This series of fixed attenuators is available in 40-80 dB values in 1 dB increments. Other impedances and connector types are also available. Please contact us with your unique requirement for the appropriate model number.

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        4 GHz Impedance Matching Pads

        Eliminate impedance discontinuity (mismatches) without introducing reflection to the circuit. Model 852-879-MF4 is a 50 to 75 Ohm impedance matching pad. This 1 Watt unit offers nominal insertion loss of 5.7 dB and VSWR of 1.40:1 with N male / F female connectors. Custom units are available in a variety of impedance and connector types from DC to 4 GHz. BroadWave Technologies impedance matching pads preserve signal integrity by matching virtually any transmission line. Various other impedance matching pads in different connector combination and impedance are available. Please contact us with your unique requirement for the appropriate model number.

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          WiFi / WiMAX Power Dividers

          WiFi/WiMAX Power Dividers

          BroadWave Technologies has expanded its’ WiFi/WiMAX power divider offering to include 4, 6 and 8-way configurations. Model series 151-215-XXX* are 50 Ohm, DC-6 GHz, 1 Watt units with SMA female connectors. Insertion loss is 1 dB nominal for the 4-way configuration across the DC-6 GHz frequency range. The 6 and 8-way configurations insertion loss is 1 dB nominal DC-5 GHz and 1.6 dB nominal 5-6 GHz. Maximum VSWR for 4, 6 and 8-way configurations is 1.50:1. BroadWave also manufactures model 151-173-002 which is a 2-way DC-6 GHz power divider with SMA female connectors. These devices are ideal for dividing signals for in-building wireless, WiFi, WiMAX, Defense, Homeland Security and Public Safety systems. Weather resistant units and other connector types are also available. Please contact us with your unique requirement for the appropriate model number.

          *Insert desired configuration (for example: 004 = 4-way configuration).

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            WiFi / WiMAX Power Dividers

            BroadWave Technologies has developed a new line of power dividers for applications across all wireless bands. Model 151-173-002 is a 2 way, 50 Ohm, DC-6 GHz, 1 Watt unit with SMA female connectors. Insertion loss is +/- 0.5 dB maximum DC-4 GHz and +/- 0.8 dB maximum 4-6 GHz with maximum VSWR 1.50:1. Model 151-231-004 is a 4 way, 50 Ohm, DC-6 GHz, 5 Watt unit with SMA female connectors. Insertion loss is +/- 1.0 dB nominal with maximum VSWR 1.50:1. These devices are ideal for dividing signals for in-building wireless, WiFi, WiMAX and Homeland Security / Public Safety systems. Weather resistant units, other configurations and connector types are also available. Please contact us with your unique requirement for the appropriate model number.

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