Ansoft Customers - Motorola

Motorola is a global leader in wireless, automotive, and broadband communications. The company�s solutions include software-enhanced wireless telephone and messaging; two-way radio products and systems; networking and Internet-access products; end-to-end systems for broadband operators; semiconductors; and integrated electronic systems for automotive, telematics, industrial, telecommunications, computing, and portable energy systems markets.

THE NEED
To rematch a full 3D model of a half-wave monopole antenna on a portable radio chassis to a lower resonant frequency

THE SOLUTION
HFSS�

SooLiam Ooi, of Motorola�s Florida Corporate Research Labs, constructed a model by translating the information on the drawing of the existing antenna to a 3D model in HFSS. After refining and completing the model, Ooi used it for tuning the antenna to a lower resonant frequency.

�From the model, a low-cost solution of making a new antenna from the existing tools with minimum modification was found,� writes Ooi. �A complete 3D model of the radio antenna enables the prediction of the new antenna, as well as future modifications on the antenna construction and on the mechanical parts of the chassis.�

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RELATED MEDIA

Press Releases

Source Date Title Author

05/23/03 Media Alert - Ansoft Announces the Release of Motorola's MET LDMOS Design Kit for Ansoft Designer�

05/30/02 Ansoft Announces the Release of Motorola's MET LDMOS for Serenade�

Presentations

Source Date Title Author

02/22/07 Integrating HFSS for RF Power Transitors Motorola

Converge 10/27/05 Principles and Applications of the Folded Inverted Conformal Antenna (FICA) technology Motorola Labs and Motorola Electronics SpA

Converge 10/27/05 UHF Handset Monopole Antenna Designed for SAR Compliance Motorola

2005 HFSS Users Workshop 02/16/05 UHF Handset Monopole Antenna Designed for SAR Compliance Using HFSS Sooliam Ooi, Motorola

Partners in Design 09/21/04 Electromagnetic-based Design Enables Cost Reduction for Handheld Commercial Radios Sooliam Ooi, Motorola

2004 HFSS Users Workshop 02/19/04 Integrating HFSS into a Computer-Aided Design Environment for RF Power Transistors Peter H. Aaen, Jaime A. Pl�; Motorola

Delivering Performance 09/29/03 RF/Mixed Signal Package Modeling Methodology using Ansoft Spicelink Sutirtha Kabir; Motorola

2003 HFSS Users Workshop 01/25/03 Multi-Pitch, Broadband Helical Antenna Design Sooliam Ooi - Motorola

2002 HFSS Users Workshop 01/25/02 Modeling of a Half-wave Monopole Antenna on a Portable Radio Chassis S. L. Ooi of Motorola

Articles

Source Date Title Author

Microwave Journal 03/01/04 New Behavioral Models Facilitate Fast and Accurate simulation of Sigma-Delta Fractional-N Synthesizers using Ansoft Designer Motorola and Ansoft

2001 Electronic Components and Technology Conference 05/21/01 Parameterized Models for a RF Chip-to-Substrate Interconnect Motorola, USA and Fraunhofer IZM, Germany