Anritsu K220 Series User manual

OPERATION AND MAINTENANCE MANUAL

FOR PRECISION ADAPTERS

1. INTRODUCTION

This manual describes the K220, 34, and 35 Series

precision adapters. The manual provides specifica-

tions, performance verification instructions, and a

list of precautions the user should observe when us-

ing a precision adapter.

2. DESCRIPTION

The standard 34 series 50-ohm adapters provide a

low-SWR connection between type N and GPC–7

connectors, between WSMA (SMA compatible) and

GPC–7 connectors, and between the K Connectorâ

and V Connectorâ. All 34 series adapters are tested

to ensure optimum performance over their full fre-

quency range.

The ruggedized 34R Series 50-ohm adapters provide

a rugged and rigid connection between the Rugged K

Female or V Female output on ANRITSU signal

sources and the respective K or type N input port on

SWR Autotesters. These adapters have an outside

diameter almost equal to that of a type N connector,

which adds mechanical strength to the sweep gen-

erator connection.

The 35 series adapters provide a transition from

waveguide to coax via the K Connector and V Con-

nector.

The K220 and 34V precision in-series adapters pro-

vide accurate measurements with K and V connec-

tors, respectively.

3. SPECIFICATIONS

Table 1 provides adapter specifications.

4. PURPOSE

The Series 34 adapters consist of moderate and high

return loss models. The moderate return loss models

(34NN50A, 34NFNF50, 34SFSF50, 34R Series)

adapt mating connectors to the input port on an

SWR Autotester or the male test ports and male de-

tectors for through-line calibration. The 34NN50A,

34RKN50, and 34RKRK50 adapters make possible a

direct connection between an SWR Autotester or

bridge and the RF output port on different models of

68XXXB and 69XXXA signal sources. This elimi-

nates the need for often lossy RF cabling.

The high return loss models (34AN50, 34ANF50,

34AS50, and 34ASF50) provide for changing the test

port connector on an SWR Autotester or bridge from

GPC–7 to type N, NF, or WSMA—or vice versa. Us-

ing any adapter to change the test port connector on

an SWR Autotester or bridge lowers its directivity

and degrades the test port match. However, a preci-

sion adapter causes less of a change. For example: If

a precision adapter having a 36 dB return loss is

used with an SWR Autotester or bridge having a 40

dB directivity and a 19 dB test port match, the effec-

tive measurement directivity lowers to 32 dB; the

test port match degrades to 17 dB. On the other

hand, if a non-precision adapter having a 24 dB re-

turn loss is used in the same situation, the effective

directivity lowers to 22 dB, while the test port match

degrades to 15 dB.

5. PRECAUTIONS

The ANRITSU precision adapters are high-quality,

precision laboratory devices and should receive the

same care and respect afforded such devices. Com-

plying with the following precautionary notes will

guarantee longer component life and less equipment

downtime due to connector failure. Also, such com-

pliance will ensure that adapter failures are not due

to misuse or abuse—two failure modes not covered

under the ANRITSU warranty.

P/N: 10100-00006

REVISION: L

PRINTED: FEBRUARY 2000

490 JARVIS DRIVE lMORGAN HILL, CA 95037-2809

ÒK Connector and V Connector are registered trademarks of the ANRITSU Company.

Anritsu 34NN50A Specs

Provided by www.AAATesters.com

2 34/35 OMM

Model Frequency Range

(GHz) Impedance

(Ohms) Connectors SWR

34NN75B DC to 3 75 N Male to N Male 1.1

34NFNF75 N Female to N Female

34AN50 DC to 18 50 GPC-7 to N Male 1.02

34ANF50 GPC-7 to N Female

34AS50 DC to 18 50 GPC-7 to WSMA Male 1.033

34ASF50 GPC-7 to WSMA Female

34NN50A DC to 18 50 N Male to N Male 1.1

34NFNF50 N Female to N Female

34NK50

DC to 18 50

N Male to K Male

1.12

34NKF50 N Male to K Female

34NFK50 N Female to K Male

34NFKF50 N Female to K Female

34SFSF50 DC to 26.5 50 WSMA Female to WSMA Female 1.11 to 18 GHz

1.18 to 26.5 GHz

34RSN50 DC to 18 50 RS Male to N Male 1.4034RKNF50 RK Male to N Female

34RVNF50 RV Male to N Female

34RKRK50 DC to 40 50 RK Male to RK Male 2.00

34RVRK50 RV Male to RK Male

34RVRV50 DC to 60 50 RV Male to RV Male 2.30

K220B DC to 40 50 K Male to K Male 1.12K222B K Female to K Female

K224B K Female to K Male

34VK50 DC to 40 50 V Male to K Male

1.3

34VFK50 V Male to K Female

34VFK50 DC to 40 50 V Female to K Male

34VFKF50 V Female to K Female

34VV50 DC to 60 50 V Male to V Male 1.534VFVF50 V Female to V Female

34VVF50 V Male to V Female

35WRD180K 18 to 40 50 WRD180 to K Male

1.25

35WRD180KF WRD180 to K Female

35WR42K 18 to 26.5 50 WR42 to K Male

35WR42KF WR42 to K Female

35WR28K 26.5 to 40 50 WR28 to K Male

35WR28KF WR28 to K Female

35WR22K 33 to 50 50 WR22 to K Male 1.30

35WR22KF WR22 to K Female

35WR22V 33 to 50 50 WR22 to V Male 1.30

35WR22VF WR22 to V Female

35WR19K 40 to 50

Usable to 54 50 WR19 to K Male 1.30

35WR19KF WR19 to K Female

35WR19V 40 to 60 50 WR19 to V Male 1.30

35WR19VF WRX19 to V Female

35WR15V 50 to 65 50 WR15 to V Male 1.38

35WR15VF WR15 to V Female

Table 1. Specifications for Adapters

a. Beware of destructive Pin Depth on Mating

Connectors. Before mating, measure the pin

depth (Figure 1) of the device that will mate

with the adapter, using an ANRITSU Pin Depth

Gauge (Figure 2) or equivalent. Based on adapt-

ers returned for repair, destructive pin depth of

mating connectors is the major cause of failure

in the field. When the adapter is mated with a

connector having a destructive pin depth, dam-

age will likely occur to the adapter connector. (A

destructive pin depth has a center pin that is too

long in respect to the connector’s reference

plane.)

The center pin of adapter connectors has a preci-

sion tolerance measured in mils (1/1000 inch).

Connectors on test devices that mate with

adapters may not be precision types and may

not have the proper depth. They must be meas-

ured before mating to ensure suitability. When

gauging pin depth, if the adapter connector indi-

cates out of tolerance (Tables 2, 3, and 4) in the

“+” region of the gauge (Figure 2), the center pin

is too long. Mating under this condition will

likely damage the adapter connector. On the

other hand, if the test device connector indicates

out of tolerance in the “–” region, the center pin

is too short. While this will not cause any dam-

age, it will result in a poor connection and a con-

sequent degradation in performance.

34/35 OMM 3

REFERENCE

PLANE

MALE

DEPTH

(INCHES)

REFERENCE

PLANE

FEMALE

DEPTH

(INCHES)

Figure 1. N Connector Pin Depth Definition

211

Figure 2. Pin Depth Gauge

Port/

Conn. Type Pin Depth

(MILS) Gauge

Reading

GPC-7 +0.000

–0.003

Same As

Pin Depth

N Male 0.207 -0.000

+0.003

N Female 0.207 +0.000

-0.003

WSMA Male –0.0025

–0.0035

WSMA Female –0.0000

–0.0010

K Male, Female +0.000

–0.003

35WR15V/VF

35WR19V/VF

35WR22V/VF –0.0002

–0.002

Table 2. Adapter Pin-Depth

Adapter V Connector K Connector

34VK50 –0.0005

–0.003 –0.0005

–0.005

34VKF50 –0.0005

–0.003 –0.0005

–0.005

34VFK50 –0.0005

–0.003 –0.0005

–0.005

34VFKF50 –0.0005

–0.003 –0.0005

–0.005

Table 3. 34 Series Adapter Pin-Depth

Adapter Input Output

K220, K222 0.000 to –0.0035 0.000 to –0.0035

K224 K 0.000 to

–0.0035 KF 0.000 to

–0.003

Table 4. K220 Series Adapter Pin-Depth

b. Avoid Over Torquing Connectors. Over

torquing connectors is destructive; it may dam-

age the connector center pin. Finger-tight is usu-

ally sufficient, especially on Type N connectors.

Should it be necessary to use a wrench to tighten

SMA or WSMA connectors, use a torque wrench

that breaks at 8 inch-pounds. As a general rule,

never use pliers to tighten connectors.

c. Do Not Disturb Teflon Tuning Washers On

Connector Center Pins. The center conduc-

tor on some adapter connectors contains a small

teflon tuning washer located near the point of

mating (interface) (Figure 3). This washer pro-

vides for precise impedance matches at the in-

terface. The washer’s location is critical to the

adapter’s performance. Do not disturb it.

d. Avoid Mechanical Shock. Adapters are de-

signed to withstand years of normal bench han-

dling. Do not drop or otherwise treat them

roughly. They are laboratory-quality devices,

and like other such devices, they require careful

handling.

e. Keep Adapter Connectors Clean. The pre-

cise geometry that makes the adapter’s high

performance possible can be disturbed by dirt

and other contamination adhering to connector

interfaces. When not in use, keep the adapter

connectors covered. Refer to paragraph 8 for

cleaning instructions.

6. OPERATION

The operation of the K220, K230, 34 and 35 Series

adapters is obvious, except for the 34RKRK50. For

this model, to enable this adapter’s coupling ring to

be tightened at the SWR Autotester’s RF INPUT

port, connect the end with the two knurled rings

(Figure 4) to the sweep generator. If the adapter

ends are connected otherwise, the SWR Autotester,

rather than the adapter coupling ring, will have to

be turned to effect a good connection.

7. PIN DEPTH MEASUREMENTS.

Gauging sets for measuring adapters are available

from ANRITSU via special order. Instructions for

gauging the adapter connectors are provided with

the gauging set.

8. MAINTENANCE

ANRITSU recommends that no maintenance other

than cleaning be attempted by the customer. The

adapter should be returned to ANRITSU for repair

and/or service when needed.

CAUTION

Do not disturb the teflon washer on

the center conductor (refer to para-

graph 5.c).

Clean the connector interfaces with clean cotton

swab dampened with alcohol.

4 34/35 OMM

TEFLON WASHER

Figure 3. Tuning Washer on GPC-7 Connector

NOTE

The teflon washer is shown on a GPC-7 connec-

tor. Asimilar washer may be installed on any AN-

RITSU precision connectors.

Figure 4. Model 34RKRK Adapter

CONNECTOR TO

SOURCE CONNECTOR TO

SWR AUTOTESTER

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