Results 21 to 30 of about 3,609 (138)

Balanced‐to‐unbalanced and balanced‐to‐balanced filtering rat‐race couplers using multilayer substate integrated waveguide cavities

IET Microwaves, Antennas &Propagation, Volume 15, Issue 15, Page 1967-1981, 16 December 2021., 2021
Abstract This study reports a class of balanced‐to‐unbalanced (BTU) and balanced‐to‐balanced (BTB) filtering rat‐race couplers (FRCs) based on multilayer substrate integrated waveguide (SIW) cavities. Input and output ports can perform the functions of balanced and unbalanced terminals to implement various operating states.
Xian Wang, Dongfang Zhou, Dewei Zhang, Yue Wang, Dalong Lv, Yi Zhang   +5 more
wiley   +1 more source

Retracted: Wideband circularly polarised antenna ‘multi‐input‐multi‐output’ for wireless UWB applications

IET Wireless Sensor Systems, Volume 11, Issue 6, Page 259-274, December 2021., 2021
Abstract Circularly polarised multiple‐input‐output antennas embedded in wearable wireless devices attract importance in the individual security and beauty fabric modelling industry involving technology embedded on‐clothes wearables. A circularly polarised wideband is designed and analysed in the present design‐study where a wearable application uses a
Pillalamarri Laxman, Anuj Jain
wiley   +1 more source

Novel balanced single/dual‐band bandpass filters based on a circular patch resonator

IET Microwaves, Antennas &Propagation, Volume 15, Issue 2, Page 206-220, 5 February 2021., 2021
Abstract A new strategy for designing single‐band and dual‐band balanced bandpass filters (BPFs) based on a circular patch resonator is proposed in this study. By altering the output balanced ports of the balanced BPFs to inhibit or transport the TM31 mode of the circular patch resonator under the differential‐mode (DM) excitation, a single‐band or ...
Qiao Zhang, Chang Chen, Weidong Chen, Jun Ding, Hualiang Zhang   +4 more
wiley   +1 more source

Design of a Novel Ultrawide Stopband Lowpass Filter Using a DMS-DGS Technique for Radar Applications [PDF]

International Journal of Microwave Science and Technology, Volume 2015, Issue 1, 2015., 2015
A novel wide stopband (WSB) low pass filter based on combination of defected ground structure (DGS), defected microstrip structure (DMS), and compensated microstrip capacitors is proposed. Their excellent defected characteristics are verified through simulation and measurements.
Ahmed A. Ibrahim, Ahmed Boutejdar, Edmund P. Burte   +2 more
core   +2 more sources

[Retracted] Circularly Polarized Wideband Fabric Stealth Multiple‐Input Multiple‐Output Antenna for Ultrawideband Applications Useful for Wireless Systems Wearable on Garments

International Journal of Antennas and Propagation, Volume 2021, Issue 1, 2021., 2021
Stealth wearable wireless devices are gaining much attention in the personal security and fashion designing industry. A multiple‐input multiple‐output wideband circularly polarized antenna wearable on a dress (textile‐related), which is immune to bending, is described in this paper, where a wearable on fabric dress application uses the MIMO techniques.
Pillalamarri Laxman, Anuj Jain, Renato Cicchetti   +2 more
wiley   +1 more source

UWB CPW fed 4-port connected ground MIMO antenna for sub-millimeter-wave 5G applications

Alexandria Engineering Journal, 2022
This paper embodies the design and development of a compact Coplanar Waveguide (CPW) fed connected ground Multiple- Input-Multiple-Output (MIMO) antennas operating in the sub-millimeter-wave 5G New Radio (NR) n257/n258/n261 bands.
Amit Patel, Arpan Desai, Issa Elfergani, Alpesh Vala, Hiren Mewada, Keyur Mahant, Sagar Patel, Chemseddine Zebiri, Jonathan Rodriguez, Esraa Ali   +9 more
doaj   +1 more source

A Band-Notched Antenna With Two Radiation Zeros Using Grounded Coplanar Waveguide Filter for 2.4/5 GHz WLAN Applications

Frontiers in Physics, 2021
In this article, a band-notched dual-polarized crossed dipole antenna is proposed for 2.4/5 GHz WLAN applications. The proposed antenna works on the WLAN 2.4-GHz (2.4–2.48 GHz) and 5-GHz (5.15–5.85 GHz) bands for a VSWR <2 with two radiation zeros ...
Min Li, Min Li, Feng Xu
doaj   +1 more source

A quad‐band defected microstrip structure loaded bandpass filter for standard GPS, WiFi, WLAN, and WiMAX applications

International journal of RF and microwave computer-aided engineering, 2022
A quad‐band bandpass filter is proposed using a defected microstrip structure (DMS) for GPS, WiFi, WLAN, and WiMAX applications. This filter uses a stub‐loaded stepped‐impedance resonator (SL‐SIR).
Sepideh Shakeri, M. Dousti, B. Ghalamkari   +2 more
semanticscholar   +1 more source

Design and fabrication of a novel multilayer bandpass fi lter with high-order harmonics suppression using parallel coupled microstrip fi lter

ETRI Journal, 2022
This study presents a novel multilayer structure of parallel coupled-line bandpass filtercentered at 2.42 GHz with a fractional bandwidth value of approximately 19.4%.
Esmaeil Fathi, Farbod Setoudeh, Mohammad Bagher Tavakoli   +2 more
doaj   +1 more source

Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications [PDF]

, 2021
This paper presents the design of a compact bandpass filter based on two identical rectangular resonators and is implemented on microstrip technology for Wi-Fi and bluetoothapplications. To reduce the size of the filter, the defected microstrip structure
Amzi, M., Belmajdoub, A., Bennani, S., Jorio, M., Lakhssassi, A.   +4 more
core   +3 more sources