FREQUENCY RANGE

(MHz)

INSERTION LOSS

(dB MAX)

AMPLITUDE BALANCE

(dB MAX)

PHASE BALANCE

225 - 400

0.20

± 0.4

90 ± 3°

ISOLATION

(dB MIN)

VSWR

(MAX, ALL

PORTS)

AVERAGE POWER

(WATTS, MAX.)

RF

INTERFACE

OPERATING TEMPERATURE

20

1.20:1

125

Leadless Surface Mount

-55° - +95° C

QUAD HYBRID

FEATURES

APPLICATIONS

• 225 - 400 MHz

• BASE STATION POWER

• LOW LOSS

AMPLIFIERS

• HIGH ISOLATION

• EXCELLENT PHASE/AMPLITUDE BALANCE

• HIGH POWER HANDLING

• SURFACE MOUNT

The QHDZ-2BH-0.33G series is a member of the Multi-Mix QHDZ family of 3-dB 90° couplers for use in

the 225-400 MHz range. The QHDZ-2BH-0.33G exhibits low insertion loss, low VSWR, and high isola-

tion. Excellent phase and amplitude balance and high RF power handling capability make this series

ideal for use in base station power amplifiers in particular and radio transceivers, receiver/antenna multi-

couplers and RF signal distribution and processing equipment in general.

The construction of QHDZ quad hybrids is based on fusion bonded multiplayer stripline structures. The

fusion bonding process yields homogeneous monolithic dielectric structures with reliability, ruggedness,

and electrical and thermal performance that are superior to conventional adhesive bonding techniques.

QHDZ-2BH-0.33G

TECHNICAL DESCRIPTION

REV: 004, 09/21/06

THE MULTI-MIX MICROTECHNOLOGY

Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006

Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: crm@merrimacind.com / www.merrimacind.com

U.S. Patent 6,099,677 and other Patents Pending.

GENERAL SPECIFICATIONS

PACKAGE OUTLINE / TAPE & REEL ORIENTATION

0.080 TYP.

0.080 TYP.

0.500

1.000

0.050 TYP.

0.050 TYP.

PORT 4

PORT 1

PORT 2

PORT 3

0.070

QHDZ-2BH-0.33G

P

P

W

K

B

1

0

0

0

ENGLISH (in)

W

1.732

0.63

P10

P

0.157

0

A

0.512

B0

0

K

METRIC (mm) 44.00

16.00 4.00

13.00

25.70

3.67

1.012

0.144

DIRECTION OF FEED

"A"

"A"

SECTION "A"-"A"

A

0

PAD 1

MARKED SIDE UP