Browsing by Author "Chaudhary, Muhammad Akmal"
Now showing items 1-5 of 5
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A Compact Filtering Coupler with Unwanted Harmonic Rejection Using LC Composite Lines for Communication Systems Applications
Roshani, Saeed; Yahya, Salah I.; Mezaal, Yaqeen Sabah; Chaudhary, Muhammad Akmal; Al-Hilali, Aqeel A.; Ghadi, Yazeed Yasin; Karimi, Mohsen; Roshani, Sobhan (MDPI, 2023)In this paper, new LC lumped components and composite lines are used to create a filtering branch line coupler (FBLC) with a small size and wide suppression band. New composite lines are proposed using applied LC lumped ... -
A Compact Microwave Quadrature Hybrid Coupler Using Capacitive Composite Lines and Meandered Stubs
Roshani, Sobhan; Yahya, Salah I.; Assaad, Maher; Chaudhary, Muhammad Akmal; Hazzazi, Fawwaz; Ghadi, Yazeed Yasin; Ali, Sarmad M.; Roshani, Saeed (Multidisciplinary Digital Publishing Institute (MDPI), 2023-12)In this paper, a new structure of the quadrature hybrid coupler (QHC) with compact size is proposed using capacitive composite lines and meandered open stubs. The proposed coupler works at 1.6 GHz with a 0.4 GHz bandwidth, ... -
A Compact Rat-Race Coupler with Harmonic Suppression for GSM Applications: Design and Implementation Using Artificial Neural Network
Yahya, Salah I.; Roshani, Saeed; Ami, Mohammad; Ghadi, Yazeed Yasin; Chaudhary, Muhammad Akmal; Roshani, Sobhan (Multidisciplinary Digital Publishing Institute (MDPI), 2023)In this paper, a compact microstrip rat-race coupler at a 950 MHz operating frequency is designed, simulated, and fabricated. New branches are proposed in this design using high-/low- impedance open-ended resonators. In ... -
A Fast Surrogate Model-Based Algorithm Using Multilayer Perceptron Neural Networks for Microwave Circuit Design
Jamshidi, Mohammad; Yahya, Salah I.; Roshani, Saeed; Chaudhary, Muhammad Akmal; Ghadi, Yazeed Yasin; Roshani, Sobhan (Multidisciplinary Digital Publishing Institute (MDPI), 2023)This paper introduces a novel algorithm for designing a low-pass filter (LPF) and a microstrip Wilkinson power divider (WPD) using a neural network surrogate model. The proposed algorithm is applicable to various microwave ... -
Mutual Coupling Reduction in Antenna Arrays Using Artificial Intelligence Approach and Inverse Neural Network Surrogates
Roshani, Saeed; Koziel, Slawomir; Yahya, Salah I.; Chaudhary, Muhammad Akmal; Ghadi, Yazeed Yasin; Roshani, Sobhan; Golunski, Lukasz (Multidisciplinary Digital Publishing Institute (MDPI), 2023)This paper presents a novel approach to reducing undesirable coupling in antenna arrays using custom-designed resonators and inverse surrogate modeling. To illustrate the concept, two standard patch antenna cells with 0.07λ ...