HARDWARE / PRODUCTUpdated 24 Jul 2026

3 dB, 90-Degree Hybrid Coupler, Model 1831

KRYTAR
3 dB, 90-Degree Hybrid Coupler, Model 1831

The KRYTAR Model 1831 is a 3 dB, 90-degree hybrid coupler offering versatile signal splitting and combining from 1.0 to 18.0 GHz, suitable for various commercial and military applications including SATCOM.

Key figurescomparable across the catalogue

Mass
0.147 kg
Power
20 W
Largest dimension
119.38 mm

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Frequency range
1.0 to 18.0 GHz
Coupling
3 dB
Amplitude imbalance
±0.5 dB
Phase imbalance
±10 degrees
Isolation
>17 dB
Maximum vswr
1.35
Insertion loss
<2.0 dB
Input power rating (Average)
20 W
Input power rating (Peak)
3 kW
Connectors
SMA Female (standard), N Female (optional)
Dimensions (L x W x H)
4.70 inches x 1.25 inches x 0.52 inches
Mass
5.2 ounces
Operating temperature
-54° to +85° C

About

KRYTAR’s 3 dB, 90-Degree Hybrid Couplers, specifically Model 1831, are designed to perform signal splitting and combining functions in amplifiers, switching circuits, and antenna beam-forming networks. These couplers are used in circuits requiring a balanced division of power into two transmission lines with a 90-degree phase separation. They provide simple solutions for applications across various frequency bands, including electronic warfare (EW), commercial wireless, SATCOM, radar, signal monitoring and measurement, antenna beam forming, and EMC testing environments. The compact size of these couplers makes them ideal for space-restricted situations, and they can be manufactured to meet military specifications. Model 1831 offers exceptional versatility from 1.0 to 18.0 GHz with excellent phase and amplitude matching. It features 3 dB Coupling, Amplitude Imbalance of ±0.5 dB, Phase Imbalance of ±10 degrees (with tighter specifications available), Isolation greater than 17 dB, Maximum VSWR of 1.35, and Insertion Loss less than 2.0 dB. The coupler has an Input Power Rating of 20 W average and 3 kW peak. It comes with industry-standard SMA Female Connectors, with optional N Female Connectors available. The compact package measures 4.70 inches (L) x 1.25 inches (W) x 0.52 inches (H) and weighs 5.2 ounces. It operates within a temperature range of -54° to +85° C. KRYTAR also offers custom design engineering services.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: krytar.com ↗

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