Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - HITTITE MICROWAVE CORPFinancial_Report.xls
10-K - 10-K - HITTITE MICROWAVE CORPa2201872z10-k.htm
EX-32.2 - EX-32.2 - HITTITE MICROWAVE CORPa2201872zex-32_2.htm
EX-23.1 - EX-23.1 - HITTITE MICROWAVE CORPa2201872zex-23_1.htm
EX-32.1 - EX-32.1 - HITTITE MICROWAVE CORPa2201872zex-32_1.htm
EX-31.1 - EX-31.1 - HITTITE MICROWAVE CORPa2201872zex-31_1.htm
EX-31.2 - EX-31.2 - HITTITE MICROWAVE CORPa2201872zex-31_2.htm
EX-10.25 - EX-10.25 - HITTITE MICROWAVE CORPa2201872zex-10_25.htm

QuickLinks -- Click here to rapidly navigate through this document

Exhibit 21.1

SUBSIDIARIES OF HITTITE MICROWAVE CORPORATION

Name of Subsidiary
  Jurisdiction of Incorporation or Organization
Hittite Microwave Europe Limited   United Kingdom

Hittite Microwave Deutschland GmbH

 

Germany

Hittite Microwave Asia Co., Limited

 

Korea

Hittite Microwave Co. Limited

 

China

Hittite Microwave Canada Inc.

 

Canada

Hittite Microwave Nordic AB

 

Sweden

Hittite Microdalga Sanayi Ve Ticaret Ltd. Sirketi

 

Turkey

Hittite Microwave Security Corporation

 

Massachusetts

Hittite KK

 

Japan

Hittite Microwave Malaysia SDN.BHD

 

Malaysia

Hittite Microwave India Pvt. Ltd.

 

India

Hittite Microwave Holding LLC

 

Delaware

HMC Netherlands, C.V.

 

Netherlands

Arctic Silicon Devices AS

 

Norway



QuickLinks

SUBSIDIARIES OF HITTITE MICROWAVE CORPORATION