The Crane/Merrimac QHB-2-5B is a 2-way power divider/combiner engineered for RF and microwave signal distribution and combining across wide frequency ranges. It splits an input signal into two equal-amplitude outputs with quadrature (90°) phase relationship, or combines two quadrature-phased, equal-amplitude signals into a single output. Built on multi-section lumped-element design, this unit delivers exceptional performance across bandwidths spanning 16:1 to 125:1 ratios.
## Technical Specifications
• **Frequency Range:** 100 kHz to 500 MHz
• **Impedance:** 50 Ω nominal
• **Coupling:** 3 dB nominal
• **Insertion Loss:** 0.3 dB maximum
• **Isolation:** 25 dB minimum
• **Phase Tolerance:** 90° ± 3° maximum
• **Amplitude Balance:** 0.6 dB maximum
• **VSWR:** 1.3:1 maximum
• **CW Input Power:** 1 Watt maximum
• **Operating Temperature Range:** −55°C to +85°C
• **Weight:** 0.75 oz (21 g) nominal
## Key Features
• Quadrature phase relationship for precision signal splitting and combining
• Low insertion loss and high isolation for minimal signal degradation
• Tight phase and amplitude tolerance specifications
• Available in BNC and SMA connector configurations
• MIL-P-23971 compliant; screened versions available for military and aerospace applications
• Compact form factor suitable for system integration
## Typical Applications
• RF and microwave signal distribution networks
• Test and measurement setups requiring dual-channel signal splitting
• Phased array and diversity antenna systems
• Signal combining in receiver and transmitter architectures
## Compatibility & Integration
The QHB-2-5B integrates into existing RF systems with standard 50 Ω impedance matching. Connector options (BNC and SMA) provide flexibility for direct integration into laboratory and production environments.
