With our exceptional engineering knowledge and expertise, we help our clients succeed through interdisciplinary and cooperative activities.

Interference Cancellation System (ICS) Development
- On-frequency Wirelesss Repeaters (CMDA, W-CDMA, WiMAX, WiBRO)
- Interference Cancellation Algorithms
- RF Interference Cancellation and Analog Signal Processing.

Software Defined Radio (SDR) Technologies
- Cognitive Radio
- OFDM-MIMO and Smart Antenna Systems Test-bed

Antenna Design & Development
- Digital Multimedia Broadcasting (DMB) Antennas
- Multi-band and Internal Cell Phone Antennas
- Ultra Small FM Antennas

RF Component Development
- Coaxial Coupled Cavity Filters
- Single-mode and Multi-mode DR Filters
- RF Tranceiver, LNA, Mixer, VCO/PLL, and Synthesizers

RF Component Design Tool Development
- Multi-mode DR Filter Design and Modeling Software Tool.
- Customized RF Filter Design Software Tool

Interference Cancellation System (ICS) Development

Application of wireless repeaters in extending the coverage area of wireless networks or improving service quality within specific areas, where signal levels would otherwise be too low for acceptable quality of service, is well known. Existing solutions, however, do not meet increasing demand for improved isolation between receiving and transmitting antennas in complex wireless environments. Our main goal is to develop an advanced interference cancellation system (ICS) for on-frequency repeaters which will combine base-band and RF cancellation techniques for an improved performance.

Software Defined Radio (SDR) Technologies

Wireless systems are becoming more and more heterogeneous in terms of standards and the frequency bands they use. In the case of the Base Station Subsystem (BSS), the reusability of existing sites is particularly important when it comes to introducing a new radio standard because it has significant benefits for operators in terms of savings in both capital expenditure and operating expenses. We target the Multi-standard multi-band solutions which are essential to enable equipment suppliers to reduce the number of development cycles, thereby cutting R&D costs and shortening the time-to-market.

Antenna Design & Development.

We design, engineer, develop, and implement satellite and wireless RF antenna systems. Our RF antenna technologies focus exclusively on Digital Multimedia Broadcasting (DMB) and compact FM antenna modules. In addition, we are involved in the development of the core technology for internal multi-band and embedded antennas driven by advanced modeling and simulation techniques. We now provide engineering solutions across the spectrum of communication disciplines.

RF Component Development

Filter structures in high-quality front-end applications in Base-station Transceiver Systems (BTS) are currently considered as the major bottleneck in downsizing of the overall system. As the signal congestion in the frequency spectrum continues to grow rapidly due to introduction and implementation of the next generation of wireless standards, there is a growing demand for more efficient use of frequency bandwidth. This requirement in turn puts more pressure on the passive filtering structures to not only provide better frequency selectivity, but also achieve this with improved performance. Factors such as insertion loss, thermal stability, power handling, and cost-effectiveness are playing more important roles as the systems move toward their threshold operational levels. Our works provide very promising technology solutions which will be key role in RF filter technologies in the future, resulting in the high performance filters that can reduce the size, weight and cost required for the filter product criteria. Our capabilities and services cover a wide range of technologies for filter structures including the multiple-coupled coaxial resonator, single-mode and multi-mode dielectric resonators and planar filters.

We also provide near turn key services for development of custom-designed RF subsystems and components such as up/down converters, LNA, mixers, PLLs, synthesizers and front-end modules for high reliability wireless and satellite communication systems in wide range of frequencies up to millimeter wave.

RF Component Design Tool Development

Design-optimization and modeling of high frequency structures have been a major challenge for RF/microwave engineers. In the absence of high fast fidelity simulation tools, most development processes are forced to include physical prototyping in the design process to verify proper functioning and ease of assembly. Such a work for physical prototype products is a major bottleneck. It slows down the product development process and seriously constrains the number of design alternative that can be examined. Furthermore, after a prototype has been built and tested, a significant amount of time is spent creating instructions for performing assembly and service.

We use several innovative algorithms to develop fast RF component modeling and optimization tools. These tools have proven to be very effective in shortening the RF design cycle for complex RF components.