MATERIAL DATA

Material

Standard

Finish

Housing, Coupling Nut

Brass

ASTM-B-16

Ternary alloy
Silver plating
Nickel plating

Male Conductor

Brass

ASTM-B-16

Gold plating
Silver plating

Female Conductor

Beryllium-copper
Phorsphor bronze
Brass

ASTM-B-196
ASTM-B-103
ASTM-B-16

Insulator

PTFE

ASTM-D-1457

-

Gasket or O-ring

Silicone rubber

ASTM-E-1418 PS1

-

Parameter

QWS

QWSC

QWSM

GDT

Product
Description

Quarter Wave Stub

Quarter Wave Stub and add DC Capacitor

Quarter Wave Stub and
Filter Protector

Gas Tube based
Coaxial Protector

Protection
Technology

1/4 wave stub

1/4 wave stub

1/4 wave stub and Bandpass filter

Gas Discharge Tube

Frequency

Narrow Band

Narrow Band

Multi Band

Multi Band

VSWR

1.1 : 1

1.1 : 1

1.15 : 1

1.2 : 1

Insertion Loss

0.1

0.1

0.2

0.2

RF Power

Limited by Connector

Limited by Connector

Limited by Connector

30W ~ 1KW
according to
GDT voltage and
limited by Connector

Work with
DC Injection

No

No

No

No

Protection
Performance

Better

Very Good

Very Good

Very Good