Now showing items 1-17 of 17

  • 35-GHz Wideband Vertical Off-Center-Fed Dipole and Its Array in LTCC Technology 

    Du, M.; Xu, J.; Ding, X.; Cao, J. P.; Deng, J. H.; Dong, Y. L. (Společnost pro radioelektronické inženýrství, 2018-04)
    A 35-GHz wideband low-temperature co-fired ceramic (LTCC) vertical off-center-fed dipole antenna and its 2×2 array are presented. The widened bandwidth of the dipole antenna is achieved by paralleling a ring-shaped stub ...
  • Class of Recursive Wideband Digital Differentiators and Integrators 

    Upadhyay, D. K. (Společnost pro radioelektronické inženýrství, 2012-09)
    New designs of recursive digital differentiators are obtained by optimizing a general fourth-order recursive digital filter over different Nyquist bands. In addition, another design of recursive digital differentiator is ...
  • Design of a Novel Wideband Low-Scattering Shared Aperture Metasurface 

    Han, T.; Cao, X. Y.; Gao, J.; Zheng, Y. J. (Společnost pro radioelektronické inženýrství, 2017-12)
    A novel shared aperture metasurface (SA-MS) for ultra-wideband radar cross section (RCS) reduction is designed and fabricated in this paper. The SA-MS is composed of a kind of perfect metamaterial absorber (PMA) and two ...
  • Design of Miniaturized 10dB Wideband Branch Line Coupler Using Dual and T-Shape Transmission Lines 

    Kumar, M.; Islam, Sk N.; Sen, G.; Parui, S. K.; Das, S. (Společnost pro radioelektronické inženýrství, 2018-04)
    This paper presents a design mechanism of miniaturized wideband branch line coupler (BLC) with loose coupling of 10 dB. Dual transmission lines are used as a feed network which provides a size reduction of 32% with a ...
  • Design of Miniaturized Wideband Microwave Absorber Loaded with Lumped Resistance 

    Lan, J. X.; Cao, X. Y.; Gao, J.; Cong, L. L.; Wang, S. M.; Yang, H. H. (Společnost pro radioelektronické inženýrství, 2018-09)
    In this paper, a polarization and angular insensitive microwave absorber with miniaturized structure is proposed. This structure integrates lumped resistances into a metallic bow-tie structure, thus achieving wideband ...
  • A Dual Layer Frequency Selective Surface Reflector for Wideband Applications 

    Chatterjee, A.; Parui, S. K. (Společnost pro radioelektronické inženýrství, 2016-04)
    A dual-layer, bandstop frequency selective surface (FSS) is presented in this paper for wideband applications. Each layer uses patch type FSS with slots for miniaturization and are cascaded with an air gap in between. The ...
  • A New Bidirectional Wideband Circularly Polarized Cylindrical Dielectric Resonator Antenna using Modified J-shaped Ground Plane for WiMAX/LTE Applications 

    Kumar, R.; Chaudhary, R. K. (Společnost pro radioelektronické inženýrství, 2019-06)
    A new singly-fed bidirectional wideband circularly polarized cylindrical dielectric resonator antenna (CDRA) using modified J-shaped ground plane is investigated and presented in this paper. The designed antenna excited ...
  • A New Coding Metasurface for Wideband RCS Reduction 

    Ji-Di, L. R.; Cao, X. Y.; Tang, Y.; Wang, S. M.; Zhao, Y.; Zhu, X. W. (Společnost pro radioelektronické inženýrství, 2018-06)
    In this paper, two novel artificial magnetic conductors (AMC) structures are designed to realize 180 degrees of phase difference in a wideband frequency. These two AMC structures are encoded as unit “0”and unit “1”, ...
  • Novel Design of Recursive Differentiator Based on Lattice Wave Digital Filter 

    Barsainya, R.; Rawat, T. K. (Společnost pro radioelektronické inženýrství, 2017-04)
    In this paper, a novel design of third and fifth order differentiator based on lattice wave digital filter (LWDF), established on optimizing L_1-error approximation function using cuckoo search algorithm (CSA) is proposed. ...
  • A Novel Low-RCS and Wideband Circularly Polarized Patch Array Based on Metasurface 

    Zhu, X. W.; Gao, J.; Cao, X. Y.; Li, T.; Zheng, Y. J.; Cong, L. L.; Ji-Di, L. R.; Zhu, B. W. (Společnost pro radioelektronické inženýrství, 2019-04)
    In this paper, a novel circularly polarized (CP) array antenna based on metasurface (MS) is designed to realize wideband radar cross section (RCS) reduction, wideband operation and high gain. The MS is composed of compact ...
  • A Novel Polarization Independent Wideband Circuit Analog Absorber Using Crossed Loops 

    Abdulhakim, L. V.; Aanandan, C. K. (Společnost pro radioelektronické inženýrství, 2018-09)
    In this paper, a polarization independent wideband circuit analog absorber is proposed. The structure consists of two dimensional periodic array of crossed loops embedded with lumped resistors printed on dielectric substrates ...
  • Širokopásmová planární anténa 

    Večerka, Kamil
    V této semestrální práci je proveden rozbor širokopásmové planární antény publikované v zahraniční literatuře, která představuje dnešní trend vývoje planárních antén. Popisuje celkový návrh antény včetně popisu zadání a ...
  • An Ultra-Thin Low-Frequency Tunable Metamaterial Absorber Based on Lumped Element 

    Zhang, G. W.; Gao, J.; Cao, X. Y.; Yang, H. H.; Jidi, L. R. (Společnost pro radioelektronické inženýrství, 2019-09)
    In this paper, an ultra-thin metamaterial absorber with a stretching transformation (ST) pattern is proposed and fabricated in the low-frequency range. The absorber is composed of dielectric layer, metal patch loading ...
  • Wideband and Compact Wilkinson Power Divider Utilizing Series Delta-Stub and Folded Stepped-Impedance Transmission Line 

    Al-Areqi, N.; You, K. Y.; Lee, C. Y.; Khamis, N. H.; Dimon, M. N. (Společnost pro radioelektronické inženýrství, 2018-04)
    In this paper, a Wilkinson power divider is modified using four-series delta-stub and folded stepped-impedance transmission line (FSITL) in order to achieve a reduced circuit size of 84% and fractional bandwidth of 116%. ...
  • Wideband Dual-Arm Capacitively Coupled Patch Antenna for Tablet/Laptop Applications 

    Niyamanon, S.; Janpangngern, P.; Phongcharoenpanich, C. (Společnost pro radioelektronické inženýrství, 2019-12)
    The capacitively coupled microstrip antenna for 4G and Wi-Fi applications is presented. The antenna has a compact size which can easily be installed into many types of wireless communication device. The antenna is designed ...
  • Wideband Miniaturized Metamaterial Absorber Covering L-Frequency Range 

    Zhang, G. W.; Gao, J.; Cao, X. Y.; Li, S. J.; Yang, H. H. (Společnost pro radioelektronické inženýrství, 2019-04)
    Using a metallic incurved structure, a wideband miniaturized metamaterial absorber (MMA) covering L-ferquency range (1-2GHz) is proposed in this paper. Simulated results show that the bandwidth of the MMA with absorptivity ...
  • Wideband P-Shaped Dielectric Resonator Antenna 

    Khalily, M.; Rahim, M.K.A.; Kishk, A.A.; Danesh, S. (Společnost pro radioelektronické inženýrství, 2013-04)
    A novel P-shaped dielectric resonator antenna (DRA) is presented and investigated for wideband wireless application. By using P-shaped resonator, a wideband impedance bandwidth of 80% from 3.5 to 8.2 GHz is achieved. The ...