QHF-23A Series 90 POWER DIVIDERS / COMBINERS 1 to 1250 MHz / Low Insertion Loss / Lumped Element Circuits / Low Profile Hermetic Package 1 2 3 4 Phasing Diagram - A 1 2 3 0° -- 90° 0° Isol. -- 90° Isol. Isol. -- 90° 0° 4 Isol. -- 90° 0° PRINCIPAL SPECIFICATIONS Model Number QHF-23A-160 QHF-23A-1000 QHF-23A-***B Center Frequency Frequency Performance 160 MHz 1000 MHz 1 to 300 MHz 107 - 214 MHz 750 - 1250 MHz Octave For complete Model Number replace *** with desired Center Frequency in MHz. A-Package Outline GENERAL SPECIFICATIONS Coupling: -- 3 dB nom. Impedance: 50 Ω nom. Isolation: < 300 MHz: 20 dB min., 25 dB typ. > 300 MHz: 18 dB min., 22 dB typ. Insertion Loss: < 75 MHz: 0.5 dB max., 0.3 dB typ. > 75 MHz: 0.75 dB max., 0.5 dB typ. Phase Tolerance: 90° ± 3° max. Amplitude Balance: 1 dB max. VSWR (In/Out): < 300 MHz: 1.3:1 max. > 300 MHz: 1.5:1 max. CW Input: 1 W max. Weight, nominal: 0.1 oz (2.8 g) Typical QHF-23A-60 Performance NOTES: 1. Tolerance on 3 place decimals ±.010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Lead dimensions apply only at body. 4. All unmarked pins are case ground. 20Feb96 General Notes: 1. The QHF-23A series of 3 dB Quadrature Hybrids covers 1 to 1250 MHz using special lumped element designs to minimize size for high performance in applications requiring small size. The 0.385" by 0.5" flatpack which houses these 3 dB Quadrature Hybrids is ideally suited to aerospace applications where inherent package reliability and hermeticity are essential. For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531