- We are experts in both Classical RF/Microwave design, and Digital Communications technology:
Classical RF technology refers to the underlying physics of RF / Microwave devices, noise,
modulation, antennas and the propagation of fields and waves.
Digital communications refers to encoding/decoding digital data, advanced modulation techniques,
signal processing, error estimation and more.
- We serve a full range of customers including small Start-up companies and large Corporations.
- We specialize in technology for the Medical Device Industry and Industrial/Consumer Electronics.
WHAT WE DO:
- Expertise in applications involving RF/Microwave fields near the Human body. (Both radiated RF fields and non-radiating near fields.)
RF communications with Medical devices including On-the-Body devices, Implanted devices and Hearing Aids Powering implanted Medical devices and consumer devices with induction or RF fields PAN (personal Area Network) communications. Bluetooth, WiF and low power communications systems
- Small (short) Antennas for implanted devices and consumer PAN devices (See ELECTROMAGNETICS page)
- Low Powered Custom Transmitter, Receiver and Antenna Technology, DC-12 GHz
- RF links for specialized Consumer and Industrial sensors, controls and RFID
- We manage FCC and CE certification for our clients
- Reverse engineering and IP analysis for 802.11x technology
ADVANCED EDA TOOLS:
RF, WIRELESS and ANTENNAS
An Electronics Design and Consulting Corporation
Buchele and Associates, Inc.
Figure1. shows an example of a Low-IF receiver design. The receiver architecture is captured and evaluated in the Matlab/Simulink/SimRF
Worksheets such as this example allow for the analysis and optimization of the critical blocks in the RF/IF path early in the design cycle. This is an important step before committing to hardware. For complex systems we consider it mandatory before committing to an ASIC design to ensure first-pass success.
Figure2. shows a cross-sectional view of the Far-Field radiation pattern for a device operating in the 2.4GHz band (Bluetooth / WiFi). The complete module is 15X25mm. The area required by the printed antenna is approximately 15X6mm. The antenna achieves good radiation efficiency (<2dB losses) for an electrically short device. S, Z and far-field radiation parameters are derived for the antenna which enable proper matching to the RF ASIC TX/RX port and calculation of the radiation pattern and efficiency.
A Finite Element (FEM) simulator (Ansoft HFSS) ) was used for this analysis.