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In this paper, a new compact wide-band branch-line couplers are presented. Significant size reduction is achieved using the proposed configurations. Two 3-dB wide-band couplers designed and simulated at 2 GHz. More than 50% areas saving and larger than 50% fractional bandwidth have been achieved. The wide-band couplers were fabricated on RF-Duroid dielectric substrate with permittivity of 2.2 and...
Active integrated antenna with image reject mixer (AIA with IRM) operating at licenseless frequency of 2.4 GHz and intermediate frequency (IF) of 50 MHz is proposed. In this work, IRM is integrated with microstrip patch antenna on the similar substrate to attain size, weight and cost reduction. The suitable substrate that serves as the common platform for all integral components is FR-4 with dielectric...
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