A planar reconfigurable antenna with bidirectional end-fire and broadside radiation patterns

2014 ◽  
Vol 56 (8) ◽  
pp. 1942-1946 ◽  
Author(s):  
Longsheng Liu ◽  
Wendong Liu ◽  
Yue Li ◽  
Zhijun Zhang ◽  
Zhenghe Feng
Keyword(s):  
Reconfigurable Antenna ◽  
Radiation Patterns ◽  
Broadside Radiation

scholarly journals A Multifunctional Compact Pattern Reconfigurable Antenna with Four Radiation Patterns for Sub-GHz IoT Applications

2021 ◽  
pp. 1-1
Author(s):  
Saeed A. Haydhah ◽  
Fabien Ferrero ◽  
Leonardo Lizzi ◽  
Mohammad S. Sharawi ◽  
Azzedine Zerguine
Keyword(s):  
Reconfigurable Antenna ◽  
Radiation Patterns ◽  
Iot Applications

scholarly journals Wideband Quad-Polarization Reconfigurable Antenna Using Switchable Feed Network With Stable Unidirectional Radiation Patterns

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 73434-73443 ◽  
Author(s):  
Xiaoxiang Ding ◽  
Zhiqin Zhao ◽  
Yaohui Yang ◽  
Zaiping Nie ◽  
Qing Huo Liu
Keyword(s):  
Reconfigurable Antenna ◽  
Radiation Patterns ◽  
Feed Network

scholarly journals A Series-Fed Linear Substrate-Integrated Dielectric Resonator Antenna Array for Millimeter-Wave Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Ke Gong ◽  
Xue Hui Hu ◽  
Peng Hu ◽  
Bing Jie Deng ◽  
You Chao Tu
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Dielectric Resonator ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Feeding Structure ◽  
Broadside Radiation

A series-fed linear substrate-integrated dielectric resonator antenna array (SIDRAA) is presented for millimeter-wave applications, in which the substrate-integrated dielectric resonator antenna (SIDRA) elements and the feeding structure can be codesigned and fabricated using the same planar process. A prototype 4 × 1 SIDRAA is designed at Ka-band and fabricated with a two-layer printed circuit board (PCB) technology. Four SIDRAs are implemented in the Rogers RT6010 substrate using the perforation technique and fed by a compact substrate-integrated waveguide (SIW) through four longitudinal coupling slots within the Rogers RT5880 substrate. The return loss, radiation patterns, and antenna gain were experimentally studied, and good agreement between the measured and simulated results is observed. The SIDRAA example provides a bandwidth of about 10% around 34.5 GHz for 10 dB return loss and stable broadside radiation patterns with the peak gain of 10.5–11.5 dBi across the band.

scholarly journals On the design of differential loudspeaker arrays with broadside radiation patterns

2021 ◽  
Vol 1 (8) ◽  
pp. 084804
Author(s):  
Jiale Wang ◽  
Wen Zhang ◽  
Chao Pan ◽  
Jingdong Chen ◽  
Jacob Benesty
Keyword(s):  
Radiation Patterns ◽  
Broadside Radiation

scholarly journals A Broadband Differential-Fed Dual-Polarized Hollow Cylindrical Dielectric Resonator Antenna for 5G Communications

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6448
Author(s):  
Xiaosheng Fang ◽  
Kangping Shi ◽  
Yuxiang Sun
Keyword(s):  
Dielectric Resonator ◽  
Impedance Bandwidth ◽  
Antenna Gain ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Higher Order Modes ◽  
Dual Polarized ◽  
Broadside Radiation ◽  
K9 Glass ◽  
Better Than

A broadband differential-fed dual-polarized hollow cylindrical dielectric resonator antenna (DRA) is proposed in this article. It makes use of the HEM111, HEM113, and HEM115 modes of the cylindrical hollow DRA. The proposed DRA is simply fed by two pairs of conducting strips and each pair of strips is provided with the out-of-phase signals. After introducing four disconnected air holes into the DRA, a broadband characteristic is achieved, with little effect on the antenna gain of its higher-order modes. To verify this idea, frosted K9-glass is applied to fabricate the hollow cylindrical DRA. The differential S-parameters, radiation patterns, and antenna gain of the DRA are studied. It is found that the proposed differential-fed dual-polarized DRA is able to provide a broad differential impedance bandwidth of ~68% and a high differential-port isolation better than ~46 dB. Moreover, symmetrical broadside radiation patterns are observed across the whole operating band. The proposed DRA covers the frequency bands including the 5G-n77 (3.4–4.2 GHz), 5G-n79 (4.4–5.0 GHz), WLAN-5.2 GHz (5.15–5.35 GHz), and WLAN-5.8 GHz (5.725–5.825 GHz), which can be used for 5G communications.

scholarly journals A Horizontal Azimuth Pattern-Reconfigurable Antenna Using Omnidirectional Microstrip Arrays for WLAN Application

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Liang Yang ◽  
Cheng Lu ◽  
Xiao Li ◽  
Leilei Liu ◽  
Xiaoxing Yin
Keyword(s):  
Central Series ◽  
Reconfigurable Antenna ◽  
Radiation Patterns ◽  
Control Board ◽  
Parasitic Element ◽  
Maximum Gain ◽  
Conducting Plate ◽  
Four Corners ◽  
Microstrip Array ◽  
Supporting Plate

A horizontal azimuth pattern-reconfigurable antenna with configurable parasitic element arrays for WLAN applications is proposed in this paper. It consists of a control board, a central series-fed omnidirectional microstrip array, four configurable parasitic elements, a bottom conducting plate, and a top supporting plate. The omnidirectional microstrip array is adopted as an exciter, around which the four same parasitic element arrays are arranged at four corners. The p-i-n diodes as switches are placed between the parasitic element arrays and the conducting plate to control the fifteen radiation patterns of the proposed antenna. The parasitic element arrays are configured as reflectors or directors by switching the p-i-n diodes on or off. The bandwidth achieved ranges from 5.00 GHz to 5.27 GHz. A gain of 8.52 dBi is obtained when the antenna reaches the maximum gain in the H-plane at 5.2 GHz. Good agreements between the simulated and measured results were observed. The proposed parasitic structure which has the same structure with the driven element can enhance the horizontal azimuth gain of the antenna. Only 4 p-i-n diodes are used to produce up to 15 useful beam configurations with a gain range of 4.56-8.52 dBi at the horizontal azimuth.

scholarly journals Compact Antenna with Frequency Reconfigurability for GPS/LTE/WWAN Mobile Handset Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Lingsheng Yang ◽  
Biyu Cheng ◽  
Yongan Zhu ◽  
Yajie Li
Keyword(s):  
Radiation Efficiency ◽  
Impedance Bandwidth ◽  
Reconfigurable Antenna ◽  
Antenna Gain ◽  
Radiation Patterns ◽  
Rf Switch ◽  
Compact Antenna ◽  
Resonant Modes ◽  
Mobile Handset ◽  
Frequency Reconfigurable Antenna

A compact frequency reconfigurable antenna for mobile handset application is proposed in this paper. The antenna consists of an inverted L-shaped feeding strip, a shorter grounded strip, and a longer grounded strip which is connected with four inductors by using a single-pole four-throw RF switch. When we change the working states of the RF switch, the corresponding inductor is connected with the long grounded strip and different resonant modes of the antenna can be realized. The measured −6 dB impedance bandwidth of the presented antenna is 683–960 MHz and 1460–2820 MHz, which is able to cover the LTE700/GSM850/900 and GPS/DCS1800/PCS1900/UMTS2100/LTE2300/2500 bands. The antenna gain, radiation efficiency, and radiation patterns are also described in the paper.

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