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
COPYRIGHT 1990 ANRITSU CO.
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
PIN
DEPTH
(INCHES)
REFERENCE
PLANE
FEMALE
PIN
DEPTH
(INCHES)
Figure 1. N Connector Pin Depth Definition
0
1
2
3
45
1
2
3
4
211 2
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