Analysis of microwave sensor design using wideband band pass filter for measuring rice quality in agriculture industry
Abstract
This paper introduced the analysis of three microstrip band pass filter designs which can work as a microwave resonator/sensor to measure the quality of rice. To maintain the tight coupling for over a wideband frequency range, all of the designs implemented broad-side coupling microstrip-slot technique into the design. The analysis shows that band pass filter Type 2 has the best performance compared to the other two designs; where the return loss is -25.3 dB and insertion loss is -0.1 dB. This is due to the signal that can transfer effectively in the ring-shaped patch (comparing Type 1 with Type 2 and Type 3) and with thicker ring (comparing Type 2 and Type 3). The advantage of using the wideband band pass filter as a microwave resonator/sensor is compact in size and low manufacturing cost.
Keywords
Publication history
- Received
- Accepted
- Published online
How to cite
Bakar A.F. A., Zaidel, D.N.A., Mat, D.A.A., Sahrani, S., Ping, K.H., Sharip, M.R.M., Seman, N. and Zaidel, D.N.A. (2018). Analysis of microwave sensor design using wideband band pass filter for measuring rice quality in agriculture industry. Asia-Pacific Journal of Food Safety and Security, 4(2), 53-62.