Quasi-arbitrary phase-difference hybrid coupler
YS Wong, SY Zheng, WS Chan - IEEE transactions on …, 2012 - ieeexplore.ieee.org
Previous hybrid couplers have output phase difference that have either been 0°, 90°, or
180°. Other phase differences could only be realized using additional phase-shift elements …
180°. Other phase differences could only be realized using additional phase-shift elements …
Phase reconfigurable hybrid coupler implemented using capacitor-loaded transmission lines
This paper presents a reconfigurable phase difference of hybrid coupler design. The
proposed design is developed based on a branch-line coupler structure where a pair of …
proposed design is developed based on a branch-line coupler structure where a pair of …
[PDF][PDF] Rectangular microstrip patch antenna array for RFID application using 2.45 GHz frequency range
ET Aye, CM Nwe - International Journal of scientific and research …, 2014 - Citeseer
In this paper, a microwave frequency band 2x2 microstrip phased antenna array is designed
for an RFID reader system. The main focus will be on optimizing of dimensions of patch …
for an RFID reader system. The main focus will be on optimizing of dimensions of patch …
Improved coverage of phased array antennas used for RFID applications
M Ould-Elhassen, M Mabrouk… - … on Phased Array …, 2013 - ieeexplore.ieee.org
This paper presents new study and design of microstrip phased array antennas used for
extending the coverage area of RFID applications (ISO 18000-4 for 2.45 GHz). The main …
extending the coverage area of RFID applications (ISO 18000-4 for 2.45 GHz). The main …
Beam scanning UHF RFID reader antenna with high gain and wide axial ratio beamwidth
A novel ultra-high-frequency (UHF) RFID reader antenna is proposed, designed and
measured. The proposed antenna is capable of 2-dimensional (2D) beam-scanning from 0° …
measured. The proposed antenna is capable of 2-dimensional (2D) beam-scanning from 0° …
具有非标准相位差的小型矩形贴片耦合器的设计.
王奇， 张文梅 - Journal of Test & Measurement Technology, 2019 - search.ebscohost.com
本文提出了一种具有非标准相位差的小型矩形贴片3dB 耦合器. 该耦合器通过在矩形贴片上蚀刻
水平和竖直两组弯折槽, 并在耦合器的两个端口处增加LC 匹配网络, 实现了小型化和非标准相位 …
水平和竖直两组弯折槽, 并在耦合器的两个端口处增加LC 匹配网络, 实现了小型化和非标准相位 …
UHF RFID 阅读器中相控阵天线的设计
李建雄， 陈明省， 宋战伟， 闫必行… - JOURNAL OF …, 2016 - search.ebscohost.com
为使阅读器在有限功率输出的情况下识别距离远和覆盖区域广, 提出了一种新的天线设计方案,
即采用相控阵天线实现阅读器空间区域的波束扫描, 天线单元辐射贴片与地平面开槽 …
即采用相控阵天线实现阅读器空间区域的波束扫描, 天线单元辐射贴片与地平面开槽 …
[PDF][PDF] RFID Reader Range Extension Using Magnetodielectric Material–An Extended Version
WC Lai, AC Sun - Journal on Electronics Engineering, 2013 - researchgate.net
ABSTRACT Radio-Frequency Identification (RFID) allows for data transfer between tag
objects to a reader via radio frequency electromagnetic fields. RFID tags are utilized by …
objects to a reader via radio frequency electromagnetic fields. RFID tags are utilized by …
A novel miniaturized antenna for RFID application in the Entrance Guard's System
J Pan, S Wen - 2009 Asia Pacific Microwave Conference, 2009 - ieeexplore.ieee.org
An UHF RFID antenna is designed specially for the application of the entrance guard's
system, which is a kind of array with two miniaturized elements in order to form a desired …
system, which is a kind of array with two miniaturized elements in order to form a desired …
[PDF][PDF] Design and Implementation of Inset feed Square Patch Micro Strip Antenna Array for WLAN Application Using Dielectric Substrate
P Upadhyay, R Singh, A Tiwari - akgec.ac.in
A Square patch Micro strip antenna array using inset feed for Wireless Local Area Network
(WLAN) and worldwide interoperability S-band frequency is presented. The proposed …
(WLAN) and worldwide interoperability S-band frequency is presented. The proposed …