Diplexers

Combines a coaxial main line and a millimeter-wave extension path into a single test port — a key passive component of band-stitching systems. Current products cover 10 MHz–170 GHz.

Band Split10 MHz–67 / 67–110 GHz; 10 MHz–110 / 110–170 GHz
In-band Insertion Loss (max)2.0 / 2.5 dB; 2.5 / 4.0 dB
Crossover Insertion Loss5.5 dB / 6.3 dB typical
Common-port Return Loss14 dB min

System validation: DIP-67-110 was used in a 2024 band-stitching experiment on a broadband measurement system and validated against a commercial vector network analyzer using matched loads and attenuators. The measured return loss of the matched load was better than 30 dB, with attenuator insertion loss of about 20.5–22 dB.

Model Comparison

Model	Band Split	LPF / HPF Insertion Loss (max)	Typical Crossover Insertion Loss	Status
DIP-67-110	10 MHz–67 GHz / 67–110 GHz	2.0 / 2.5 dB	5.5 dB	In Production
DIP-110-170	10 MHz–110 GHz / 110–170 GHz	2.5 / 4.0 dB	6.3 dB	In Production

Click a model to jump to its specifications and curves below.

MODEL DIP-67-110 110 GHz Diplexer Combines the 10 MHz–67 GHz coaxial path and the 67–110 GHz extension path into a single test port — the core passive component of a 110 GHz band-stitching system, validated on a full system in 2024. In Production 10 MHz–67 GHz / 67–110 GHz

Package render

Electrical Characteristics

LPF / HPF Bands	10 MHz–67 GHz / 67–110 GHz
LPF / HPF Insertion Loss (max)	2.0 dB / 2.5 dB
Typical Crossover Insertion Loss	5.5 dB
Common-port Return Loss	14 dB min

Mechanical & Interface

Package dimensions follow the 110 GHz assembly drawing

Inquire about DIP-67-110

Test Data

**Measured: Transmission (LPF & HPF paths)** Measured

**Measured: Common-port Reflection** Measured

MODEL DIP-110-170 170 GHz Diplexer Routes the 110–170 GHz waveguide path into the 10 MHz–110 GHz coaxial main line, combining a near-170 GHz extension module and the baseband path into a single test port. In Production 10 MHz–110 GHz / 110–170 GHz

Package render

Electrical Characteristics

LPF / HPF Bands	10 MHz–110 GHz / 110–170 GHz
LPF / HPF Insertion Loss (max)	2.5 dB / 4.0 dB
Typical Crossover Insertion Loss	6.3 dB
Common-port Return Loss	8 dB min / 10 dB typical

Mechanical & Interface

Overall envelope 43.06 × 23.21 × 20.97 mm

Inquire about DIP-110-170

Test Data

**Measured: High-pass Path Detail (100–160 GHz)** Measured

Usage Notes

The following points are for reference in system design only.

Passive and bidirectional

The diplexer is a passive component (the functional direction shown is combining) and can also be used in reverse to split two bands.

Budget the crossover loss separately

When budgeting power at the band boundary, use the standalone crossover insertion loss (5.5 dB for DIP-67-110, 6.3 dB for DIP-110-170); in-band insertion loss alone does not describe this region.

Include the diplexer in calibration

The diplexer sits between the common test port and each sampling branch, so the calibration of every branch must include the diplexer response in the reference plane.

Need a custom crossover frequency?

Crossover frequency, in-band flatness and port types can all be tailored to the system. Please provide your target bands and system topology and we will respond after evaluation.