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A single element linearly polarized (LP) aperture coupled microstrip patch antenna (ACMPA) in microwave frequency band is presented in this paper. The paper starts with the requirement for developing a low profile, low cost, lightweight, wideband LP antenna suitable for commercial chipless RFID tag readers. Then, a thorough review is done on existing low profile wideband antenna designs to find out...
This paper presents an ultra-low-power low-voltage Class-AB Fully Differential Operational Amplifier designed in 45-nm CMOS technology. The proposed circuit uses transistors operating in sub-threshold region for low-power and low-voltage operation. The proposed Op Amp offers an open-loop gain of 74.6 dB, 1 MHz unity gain frequency, 50-degrees Phase Margin, and 91.55 dB common-mode rejection ratio...
A $4 \times 4$ dual polarized (DP) aperture-coupled microstrip patch antenna (ACMPA) array for a universal millimeter (mm)-wave chipless RFID tag reader is presented. The mm-wave DP ACMPA array is capable of reading all types of frequency domain-based chipless RFID tags (linearly polarized, orientation insensitive, cross-polarized (CP), and DP) within its operating frequency bandwidth. The developed...
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