RF Microwave Parts & Subassemblies

Filters are one of the fundamental building blocks of RF and microwave systems, along with amplifiers, oscillators, mixers, and switches.

Specializing in high-performance solutions we offer RF, microwave filters in the area of emerging applications for both military and commercial markets.


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5G solutions

To support your 5G R&D, we provide solutions, products and development kits, as follows:


  • Power amplifiers components and modules up to 40W
  • 28/39 GHz LO sources (SMT or modules)
  • Development beamforming kit including:
    • Antenna array kits
    • Phase shifter, Variable attenuator, PA, LAN, and T/R switches
    • RF channel selectors (SP4T/SP8T RF switches up to 50 GHz)
    • Up/Down converter with internal Phase-Locked Oscillator
    • Control center and software
  • Custom solutions \ development kits to meet your requirements are also available upon request.

RF Filters types

RF filters are a key component in practically any signal chain. Depending on the application, it is an essential component in order to filter out noise and unwanted signals, limit a transmit signal in order to prevent interfering with other signals or isolate channels in a transceiver.


  • Ceramic filters
  • Mono-block filters
  • Cavity filters up to 40GHz
  • Helical filters
  • Crystal filters
  • SAW filters 
  • WG filters
  • LC filters

RF Low, High and Ultra-Wide Band pass filters

Up to 110GHz filter components and band pass filters, low pass filters and high pass filters used in broadband RF & Microwave and communication systems.



  • Frequency range: From 0.2 up to 110GHz.
  • Bandwidth: up to full waveguide bandwidth
  • Insertion Loss: 0.1 to 1 dB
  • VSWR: 1.5:1 typ


Spacek Labs offers both custom and standard designed active and passive multipliers in a frequency range of 10 to 110 GHz.  MIL-Spec or Space-Qualified units are also available.


The active multiplier line includes 2 thru 8 times multiplication factors operating all the way through W-band. The passive multiplier line utilizes variable-resistance Schottky barrier diodes as the non-linear element to create multiplication factors of 2 thru 4 times. All passive multipliers are of balanced configuration to suppress undesired harmonics, unconditionally stable for any input/output VSWR and they cover complete waveguide bandwidths.


Multipliers are available in:

  • Full Band & Sub-Band Active Multipliers
  • High Power Multipliers, Passive Multipliers

Standard Features:

  • 10 to 110 GHz
  • Balanced Circuitry
  • Compact Size
  • Removable coaxial Connectors or Waveguide Flanges
  • Modular Design
Frequency Sources

Frequency Sources

Spacek Labs offers three categories of frequency sources from 18GHz up to 110GHz.


Gunn Oscillators– These are relatively inexpensive stable sources, that can be fixed, mechanical or varactor tuned.

Frequency Synthesizers – A lower frequency synthesizer is multiplied, amplified and filtered to produce a clean and stable band of frequencies in the millimeter-wave frequency range.

Phase-Locked Sources – Single Frequency Phase Locked Oscillators in Ku band are multiplied, amplified and filtered to produce a clean and stable output in the millimeter-wave frequency range.

RF Systems & Subsystems Custom Design

  • Composed of Combiner, Duplexer, BPF, Coupler, LNA and more.
  • Additional Channel Combiners mountable.
  • Applicable to LTE, GSM, W-CDMA, CDMA, WiMax, WiBro Cellular, PCS, UMTS, and more.
  • Supportive alarm and control function.
  • Resides in a 19¡± rack unit for in-building applications.
  • Offers custom made solutions as well as standard products.


Lineup of Receivers in standard and custom designs are available. Spans up to 110GHz and offers high performance, waveguide or coaxial ports, with mounting details or freestanding, IP66 weatherized system and more.

Custom-made receivers are also available to meet your electrical, mechanical or pricing requirements.

Standard Features:

  • RF input up to 110 GHz
  • Full or partial band coverage
  • RF to IF gain available
  • Noise figures as low as 4 dB
  • Weatherized IP66 housing available
  • AC or DC input power
  • Image rejection


Transceivers are available from 18-110 GHz. System bandwidths range from under 1 GHz to full waveguide bandwidths, with either coax or waveguide ports. These transceivers are designed to offer premium performance at a fair price, offer separate two-channel, full-duplex designs and use a common phase-locked local oscillator driving two mixers. The upconverting mixer has a bandpass filter followed by an optional power amplifier on the output. The downconverting mixer can have an optional low-noise amplifier in front of it. Output powers of up to 1 watt and noise figures as low as 4.0 dB are available. Cross channel isolation is greater than 60 dB. Also available are multiple channel versions – i.e. one upconverter channel and two to four downconverter channels. Any LO frequency can be chosen to optimize the IF band.

Standard Features:

  • RF input / output 18 to 110 GHz
  • Full or partial band coverage
  • Conversion gain available
  • Channel isolation: 60 dB min
  • Output power to 1 Watt
  • Input noise figure of as low as 4 dB
  • Input /output isolators available
  • Weatherized IP66 housing available
  • AC or DC input power


Transmitter are available in frequencies from 18 to 110 GHz and offered in bandwidths from less than 1 GHz to full waveguide bandwidths. An integral RF High or Low Pass filter is used to reject the unwanted sideband.

Custom designs are also available.

Standard Features:

  • Full or partial band coverage
  • IF to RF gain available
  • Output power to 1 Watt
  • Weatherized IP66 housing available
  • AC or DC input power
  • Image rejection
Radiometer Front-Ends

Radiometer Front-Ends

Spacek Labs Radiometer Front-ends are available in frequencies from 18 to 110 GHz.  Radiometers are offered in bandwidths spanning a frequency range from less than 1 GHz to 10 GHz. A lineup of standard and custom-tailored Radiometer designs is available to meet all your electrical, mechanical or pricing requirements.

Standard Features:

  • 18 to 110 GHz coverage
  • Low DSB noise figure
  • Single or dual input channels
  • 30 to 60 dB RF to IF gain
  • 110 K typ noise injection
  • Down conversion and direct-detect system