Flex RF Cables

Junkosha MWX

Junkosha’s MWX series cable assemblies offer excellent phase and loss stability against temperature fluctuations and bending. They are ideal for connecting vector network analyzers for precision measurements up to 26.5 GHz, 40 GHz, 50 GHz, and 67 GHz.

MWX221 Specifications

  • Maximum frequency: 26.5 GHz
  • Characteristic impedance: 50 +/-1 ohms
  • Typical Insertion Loss @26.5 GHz: 1.41 dB (1 m)
  • Capacitance (typ.): 88 pF/m Propagation delay (typ.): 4.4 ns/m
  • Shortening coefficient of wavelength (typ.): 76%
  • VSWR (per connector/both ends of assy.): 1.153/1.33
  • Cable outer diameter: 6 mm Minimum bending radius: 20 mm
  • Cable mass (typ.): 64 g/m
  • Continuous operating temp.: -30~+85C
MWX0 cables
MWX0 cables

MWX221 Part No. Information

  • MWX221-01000DMSDMS (26.5 GHz, 1-meter cable with 3.5 mm straight male jack on both ends)
  • MWX221-01200DMSDMS (26.5 GHz, 1.2-meter cable with 3.5 mm straight male jack on both ends)

PacketMicro carries Junkosha MWX221 26.5 GHz 1.0 m and MWX241 40 GHz 1.0 m with male-male connectors in stock for prompt delivery. For other cable assembly configurations, please contact PacketMicro



PacketMicro works with Junkosha of Japan to bring Junkosha's highly flexible microwave cables to the US and the rest of the world. The highly flexible MWX2 and high phase stability MWX0 cable assemblies are ideal for probing applications when the test probes and positioners pulled by the cable force may cause difficulties in performing precision measurements.

MWX Cable Selection Options

  • Frequency: 26.5 GHz (221), 40 GHz (241), 50 GHz (251), 67 GHz (261)
  • Length: 5 digits in mm
  • Connector: SMA (male, female), 3.5 mm (m, f), 2.92 mm (m,f). 2.4 mm (m,f), 1.85 (m,f)

 Cables Example 


Insertion Loss

Cables Bending

Junkosha Cables Demonstration

Cables Demo

Junkosha cables used in Flex Probe Station

About PacketMicro

PacketMicro, based in Silicon Valley, provides a wide range of gigahertz probes, probe positioners, bench-top probe stations, and digital microscopes. In addition, PacketMicro offers wireless modules and engineering services in Bluetooth Smart, ZigBee, and wireless sensor networks. PacketMicro customers include many Fortune 100 companies.

Get in touch

PacketMicro, Inc.
2312 Walsh Avenue, Suite A
Santa Clara, CA 95051

+1 408 675 3900 (Main)

+1 408 580 0059