CER0031A
1800 MHz KPCS Duplexer
Rev 1 – Origin Date: July 11, 2005 – Revision Date: March 3, 2006
Features
• Small Size
• Low Loss
• High Tx Isolation
Description
Surface mount, silver (Ag) coated ceramic
duplexer. Developed for use in Korean
PCS subscriber and infrastructure
applications.
Weight: 0.77 grams typical
Material: Filter is composed of a ceramic
block coated with Ag and a shield made of
nickel silver plated brass.
Filter complies with RoHS standards.
Electrical Specifications
Parameter
TX to ANT Response
Passband Insertion Loss
Passband Return Loss @ TX
Passband Ripple
Attenuation:
ANT to RX Response
Passband Insertion Loss
Passband Return Loss @ ANT
Passband Ripple
Attenuation:
TX to RX Response
Rejection @ TX band
Rejection @ RX band
Power into any port
Frequency
(MHz)
1750-1780
1750-1780
1750-1780
1840-1870
1840-1870
1840-1870
1840-1870
1750-1780
1750-1780
1840-1870
Typical @ 25ºC Spec. @ 25ºC
2.4 dB
12.0 dB
1.0 dB
46.0 dB
2.5 dB
12.0 dB
1.2 dB
60.0 dB
62.0 dB
46.0 dB
2.8 dB max
10.0 dB min
1.8 dB max
40.0 dB min
3.0 dB max
10.0 dB min
2.5 dB max
58.0 dB min
58.0 dB min
40.0 dB min
2 Watt max
Spec. over
-40ºC to +85ºC
3.0 dB max
9.0 dB min
1.9 dB max
39.0 dB min
3.2 dB max
9.0 dB min
2.6 dB max
57.0 dB min
57.0 dB min
39.0 dB min
Note: Supplier shall test each filter to the critical electrical specifications of the above table. Any subsequent audits may deviate from in value due to measurement
repeatability among different test systems. Such deviations shall not exceed the following limits:
Specification Allowance
Insertion Loss
0.1 dB
Return Loss
1.0 dB
Stopbands
1.0 dB
•“This product is covered by one or more of the following U.S. and foreign patents including: US 4,692,726;US 4,742,562; US 4,800,348;US 4,829,274;US 5,146,193;EP 0573597;DE 0573597;FR 0573597;JP 508149/92;KR 142171;US
5,162,760;US 5,218,329;US 5,250,916;US 5,327,109;US 5,488,335;CA 2114029;FR 9306297;GB 2273393;JP 3205337;KR 115113;CN 93106228.4;US 5,512,866;EP 0706719;DE 0706719;FR 0706719;GB 0706719;CN 95190359.4;US
5,602,518;US 5,721,520;US 5,745,018;EP 0910875;DE 0910875;DK 0910875;FR 0910875;GB 0910875;IE 0910875;JP 505182/98;KR 10-323013;US 5,994,978;US 6,462,629;CN 00810420.4;US 6,559,735;US 6,650,202;US 6,834,429.Other
US and foreign patents pending.
•CTS Corporation 2006 reserves all copyrights in the layout, design and configuration of the patterns on this product.”
Document No. 008-0256-0
Page 1 of 2
Rev. X4VH
- CTS Electronic Components -
www.ctscorp.com
- 171 Covington Drive - Bloomingdale, IL 60108 -
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