Angle of arrival estimation using RSSI and omnidirectional rotatable antennas

M Malajner, P Planinsic, D Gleich - IEEE Sensors Journal, 2011 - ieeexplore.ieee.org
This paper proposes a simple novel method for angle of arrival estimation using multiple
rotating omnidirectional antennas on a receiver device. The used omnidirectional microstrip …

5G planar branch line coupler design based on the analysis of dielectric constant, loss tangent and quality factor at high frequency

NA Mohd Shukor, N Seman - Scientific Reports, 2020 - nature.com
This study focuses on the effect of different dielectric properties in the design of 3-dB planar
branch line coupler (BLC) using RT5880, RO4350, TMM4 and RT6010, particularly at high …

A zero-power ubiquitous wireless liquid-level sensor based on microfluidic-integrated microstrip antenna

L Zhu, N Alsaab, MMC Cheng… - IEEE Journal of Radio …, 2020 - ieeexplore.ieee.org
Harmonic transponder sensors, receiving radio-frequency (RF) signal and converting it to a
modulated second harmonic, have been demonstrated to be effective for signal interrogation …

Metamaterial based compact branch-line coupler with enhanced bandwidth for use in 5G applications

AK Vallappil, MKA Rahim… - The Applied …, 2020 - journals.riverpublishers.com
A novel compact 5G branch-line coupler (BLC) based on open-circuit coupled-lines and
interdigital capacitor structure is presented in this paper. The proposed BLC shows the …

High-gain low-cost microstrip antennas and arrays based on FR4 epoxy

B Honarbakhsh - AEU-International Journal of Electronics and …, 2017 - Elsevier
In this work, two previously reported low-cost design techniques for high-gain microstrip
antennas are compared based on detailed parameter study. Both of these methods exploit a …

Integral equation analysis of a low-profile receiving planar microstrip antenna with a cloaking superstrate

CA Valagiannopoulos, NL Tsitsas - Radio Science, 2012 - ieeexplore.ieee.org
Eliminating the electromagnetic interaction of a device with its background is a topic which
attracts considerable attention both from a theoretical as well as from an experimental point …

Design of Arrays of Linearly Polarized Patch Antennas on an FR4 Substrate: Design of a probe-fed electrically equivalent microstrip radiator

DC Nascimento, JCS Lacava - IEEE Antennas and …, 2015 - ieeexplore.ieee.org
A new strategy for designing probe-fed electrically equivalent microstrip radiators based on
their electrical dimensions is discussed in this article. Radiators on a Flame Retardant 4 …

Patch size reduction of rectangular microstrip antennas by means of a cuboid ridge

A Motevasselian, WG Whittow - IET Microwaves, Antennas & …, 2015 - Wiley Online Library
An effective approach to reduce the patch size in rectangular patch microstrip antennas is
presented. The proposed approach is based on inductively loading the patch using a cuboid …

Probe-fed wideband AMC-integrated hexagonal antenna with uniform gain characteristics for WLAN applications

A Joshi, R Singhal - Wireless Networks, 2020 - Springer
Demand of antennas those possess wide radiation bandwidth while operating in S-band for
wireless communication systems is increasing day by day. Thick substrates are popular …

Asymmetric and symmetric modified bow‐tie slotted circular patch antennas for circular polarization

NK Darimireddy, RR Reddy, AM Prasad - ETRI Journal, 2018 - Wiley Online Library
Modern communication systems employ wideband antennas with circular polarization (CP)
radiation. In this work, asymmetric modified bow‐tie (ABT) and symmetric modified bow‐tie …