New 400 MHz and 900 MHz Yagi Antennas for Industrial and Utility Applications

The new 400 MHz and 900 MHz yagi antennas from Pasternack are the high-quality tough solution needed for utilities and Land Mobile Radio (LMR) applications.

These new yagi antennas feature fully-welded, aircraft-quality aluminum powder coating for maximum durability, ensuring performance and survivability in the toughest environments.  The antennas are built to withstand up to 200 mph wind speeds and resist icing and corrosive elements.

Supplied with N-Type female connectors, the new Pasternack yagi antennas provide 7 dBi to 13 dBi of gain for superior performance and allow simple connections to the communication network.

These high-performance 400 MHz and 900 MHz yagi antennas are in-stock and available for same-day shipping.

Yagi antenna applications:

  • Utilities
  • Land Mobile Radio
  • Oil and Gas
  • Manufacturing
  • Public Safety
  • WISP


  • Yagi antennas offering 400 to 470 MHz (400 MHz band) and 880
    to 960 MHz (900 MHz band) configurations
  • Aircraft-quality aluminum with 1″ boom and 5/16″ elements
  • Black powder-coated for corrosion, fade, and ice build-up resistance
  • 200 mph wind survivability
  • Gain options of 7 dBi to 13 dBi
  • Antennas come fully welded for maximum durability
  • In-stock and available for same-day shipping

Save Time with our Quick-Connect RF Terminations

In many DAS, base station, antenna and test applications the need to quickly and efficiently change RF terminations without the use of a tool is required to save both time and money.

To address these applications, Pasternack has just released a new series of quick connect RF loads.

These quick connect RF loads improve flexibility of installation and eliminate the need for wrench or torque for installation.

Features include:
– Quick connect and easy installation RF loads with SMP, SMP-M, BMA, QMA, QN and 4.3-10 connectorized designs
– Frequency ranges from DC to 40GHz
– VSWR as low as 1.1:1
– Input power up to 2W Max
– Models with chains are available

These new Quick Connect RF Loads are in-stock and available to ship today. For detailed information on these products, please click on the link below.

In-Stock! End Launch Connectors to 110 GHz

To address the requirement for high speed millimeter-wave interconnects for chip evaluations, signal integrity measurements, 25 GbE, SERDES, coplanar waveguide, substrate characterization and test fixture applications, Pasternack has just released a new series of high performance End Launch Connectors.

The new End Launch Connectors offer excellent VSWR performance with a reduced mounting profile, allowing designers to place even more connections in the same PCB area.

Features include:
• PCB edge launch connection
• Reusable end launch installation
• Solder or solder-less end launches
• Rugged support beads
• 40 GHz, 50 GHz, 67 GHz and 110 GHz

These new End Launch Connectors are in-stock and available to ship today. For detailed information on these products, please use the links below.

New Waveguide Gunn-diode Oscillators Up to 35 GHz In-Stock

Pasternack’s new K and Ka-band Waveguide Gunn Oscillators provide a cost-effective source for microwave power with excellent frequency and power stability while generating low phase noise.

Due to the extremely high external Q and temperature compensation mechanism, these waveguide Gunn Diode oscillator´s exhibit excellent frequency and power stability, lower phase noise and higher anti-load pulling characteristics. These brand new Gunn-diode oscillators also incorporate high performance devices and machined aluminum cavities.

Features Include:
• 2 Models with Popular K and Ka Band Center Frequencies of 24.125 GHz and 35 GHz
• Designs feature mechanical tuning capability ranging up to ± 3 GHz
• Excellent Phase Noise Performance as low as -98 dBc/Hz typical
• +10 dBm Output Power with Frequency Stability as low as -0.2 MHz/°C
• Models have an Operational Temperature Range of -40°C to +85°C
• Compact Aluminum Packages have Precision Machined Cavities that exhibit Optimum Performance
• Fully Integrated Mil Grade WR-28 and WR-42 Waveguide Ports

The new waveguide Gunn Diode Oscillators are in-stock and available to ship today. For additional product details, please click the links below.

When Do You Need a Bias Tee or DC Block?

Bias Tees and DC blocks are both low frequency filters designed to pass certain wanted signals and power rails while blocking other signals and limiting the performance impact on RF/microwave circuits. Bias Tees are essentially diplexers with an extremely low crossover frequency, and DC blocks are high pass filters with cutoff frequency down to audio frequencies and DC.

DC blocks are used for enhancing signal-to-noise ratio and dynamic range on some very low frequency or wideband systems, as well as block DC and audio frequencies from testing that may require isolation from such low frequency components. DC blocks are also used for signal source modulation leakage suppression, and ground loop elimination.

Bias Tees are used to allow for DC currents and/or voltages to pass to RF devices while blocking RF/microwave signals on the same line. For example, a Bias Tee may be used to enable a power supply to a transistor or amplifier circuit, which requires a DC signal and would be disturbed by the RF content on the signal and power line. There are also pulsed bias tees, which allow for minimum distortion on current, or voltage, pulses for amplifiers and devices which require intermittent signals for biasing or power.

Bias Tees and DC blocks are both very commonly used in many RF/microwave circuits which require the conveyance of DC signals along the same coaxial or microstrip signal path as RF/microwave signals. Bias tees and DC blocks may even be used together at a node where the DC power or bias voltage/current is needed, but would be disruptive if it passed further down the RF transmission line.

Bias tees are used anywhere from cell phone amplifiers to test and measurement equipment. An example of this is with powered probes which have a power hookup at the same port as the RF signal port.

DC blocks are typically only used where powered RF transmission lines, or “hot” conductors, are used. However, DC blocks may also be used to separate a circuit from a ground place and DC and audio signals, to prevent current passing or voltage developing from that circuit node to ground. An example of this is in the instance where a voltage is injected into the source of a shunt FET, which is also grounded to the grounded housing or fixture of the assembly.