A Planar Polarization-Reconfigurable Antenna

Hao, Zhang‐Cheng; Fan, Kuikui; Wang, Honghui

doi:10.1109/tap.2017.2670440

Cited by 45 publications

(16 citation statements)

References 23 publications

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“…Such functionality can be used to realize high‐performance, co‐location receiving antenna in wireless channel measurement systems . The operation principle of dual CP square loop antennas can also be extended in the design of polarization‐reconfigurable or polarization‐agile antennas in various wireless sensor systems and applications. Furthermore, co‐linear embedded loop configurations could be employed to realize a wideband design .…”

Section: Resultsmentioning

confidence: 99%

Dual circularly polarized loop antenna using a pair of resonant even‐modes

Yuan

et al. 2019

Int J RF Microw Comput Aided Eng

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Conceptual design of dual circularly polarized (CP) square loop antennas using a pair of resonant even-modes for wireless sensor application is presented. A pair of even-modes is simultaneously excited within a single, nonuniform square loop element and employed to realize a dual circular polarization characteristic. When the natural boundary conditions of the even-modes and the feed lines are matched, respectively, a bidirectional dual CP loop antenna can be attained at first. Then, a unidirectional dual CP loop antenna is designed by introducing a simple metallic reflector. Both bidirectional and unidirectional designs exhibit dual CP performance with available operation bandwidth of 10.0% and 8.5%. The design approach is expected to get applications in dual CP antenna designs for wireless sensor systems. K E Y W O R D S dual circularly polarized antennas, even-mode resonant, square loop antenna 1 | INTRODUCTIONWireless sensors have been widely applied in wearable human activity recognition, 1 embedded sensing network, 2,3 home automation, 4 and so forth. The reliability of wireless signal transmission/reception in multipath fading, wireless sensing environments is always a critical challenge. CP antennas have been successfully employed to overcome the multipath effect and random polarization mismatching in wireless communications 5 and wearable sensing systems. 6 Although distributed CP diversity systems can be implemented by using a pair of CP antennas with opposite sensing, 6 dual CP antennas 7,8 would provide a co-location diversity transmitting/receiving functionality, and thus reduce the size, complexity and cost of wireless sensor systems. In the past few years, a series of dual CP antennas have been developed. These designs can be classified into three distinctive types according to their operation principles. The first type is the symmetrical perturbation 9,10 technique with enhanced compensation network 11 : Several symmetrical parasitic elements are stacked to the primary patch radiator, thus both LHCP and RHCP can be excited simultaneously. The second one is to use an additional 90 branch-line directional coupler. By connecting two orthogonal linearly polarized (LP) elements to the outputs of such couplers, RHCP and LHCP can be attained at the two mutually isolated inputs. [12][13][14][15][16] The third one is to enhance coupling with phase shifting network, 17-21 which can be recognized as the improved version of the two previous techniques.Basically, these techniques share one common characteristic that dual CP characteristic should be implemented by simultaneously exciting two orthogonal LP components with equal-magnitude and in/out phase-quadrature. Owing to introducing the techniques of symmetrical perturbations, 90 branch-line directional coupler, and phase shift networks, the resultant antennas are inevitably with high structural complexities having quite numerous parameters. As promising dual CP antenna designs with relatively simple structures, loop antennas have drawn more and more attenti...

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Section: Resultsmentioning

confidence: 99%

Dual circularly polarized loop antenna using a pair of resonant even‐modes

Yuan

et al. 2019

Int J RF Microw Comput Aided Eng

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“…Untuk band rendah (dari 824 hingga 960 MHz), keuntungan antena dan kecekapan keseluruhannya adalah kira-kira 0.3 hingga 1.7 dBi, dan 45 hingga 60% dan juga bagi band operasi atas (daripada 1710 hingga 2690 MHz), keuntungan dan jumlah kecekapan masing-masing adalah 1.2 hingga 4.2 dBi dan 47% (Zhang et al 2017). Dalam kertas ini, antena yang boleh dikonfigurasi polarisasi planar dengan penggubahan topologi mudah dengan menggunakan sifat mod bergemaberganda pada rongga panduan gelombang bersepadu substrat (SIW) diperkenalkan oleh Hao et al (2017). Dua input-port telah digunakan untuk melaraskan pengedaran fasa slot terpancar yang terukir pada permukaan atas rongga SIW.…”

Section: Pengenalanunclassified

Inspirasi Antena Metabahan yang Boleh Dikonfigurasi untuk Komunikasi 5G

Faruque¹,

Hasan²,

Roslan³

et al. 2019

JSM

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ABSTRAKPerkembangan lalu lintas dalam sistem komunikasi tanpa wayar telah menarik banyak pihak menumpukan perhatian kepada spektrum jalur lebar luas dalam gelombang frekuensi millimeter yang merupakan keperluan komunikasi generasi kelima (5G). Inspirasi antena yang boleh dikonfigurasi frekuensinya berasaskan metabahan dicadangkan untuk komunikasi 5G. Ia terdiri daripada garisan suapan lurus ekakutub dengan dua resonator cincin yang berpecah dua (DSRR). DSRR dibangunkan oleh resonator cincin berpecah luar dan dalam dengan jalur logam tembaga E-bentuk terbalik yang dihubungkan dengan resonator cincin luar. Teknik Integrasi Terhad berasaskan simulator elektromagnet CST Microwave Studio digunakan untuk reka bentuk dan kajian berangka. Pulangan Kerugian (S 11 ) menunjukkan resonan dalam 32.08 GHz, 35.07 GHz, dan 41.60 GHz. Prestasi antena yang boleh dikonfigurasi dicadangkan dianalisis dengan mengaktifkan atau menyahaktifkan DSRR. Walau bagaimanapun, metabahan yang direka menunjukkan ciri-ciri lengan kiri, padatan dalam ukuran dan lebih bersesuaian untuk aplikasi gelombang tanpa wayar 5G. Kata kunci: Aplikasi 5G; konfigurasi antena; metabahan lengan kiriABSTRACT Traffic development in the wireless communication system has attracted many parties concentrating on a broad bandwidth spectrum in the wave of frequency millimeters which is a fifth generation communication requirement (5G). Inspired antennae that can be configured by its own metamaterial is suggested for 5G communication. It consists of a straight feed line monopole with two resonator rings that split to two (DSRR). DSRR was developed by resonator the external split ring and in with the brass metal stripe of an overturned E-form linked to the resonator of the outer ring. Limited Integration techniques based on electromagnet CST Microwave Studio is used for numerical design and investigation. The Return of Loss (S 11 ) showed a resonant in 32.08 GHz, 35.07 GHz and 41.60 GHz. The antenna performance that can be configured is analyzed by activating or deactivating DSRR. However, metamaterial designed shows the characteristics of the left arm, a measure in measurements and is more appropriate for the 5G wireless wave application.

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“…An ultrawide band MIMO antenna for mobile with high isolation is presented in [11] and consists of planar monopole with back to back tapered sots. Substrate integrated waveguide (SIW) is also used to generate CP reconfigurable antenna [12] while in [13] a cavity backed SIW antenna with a slot generates CP. Other designs are also reported for GNSS system and RFID system using CP antennas for reliable communication [14,15].…”

Section: Introductionmentioning

confidence: 99%

Pattern Diversity Mimo 4g and 5g Wideband Circularly Polarized Antenna With Integrated Lte Band for Mobile Handset

Chaudhary¹,

Kumar²,

Yadav³

2020

PIER M

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The present work describes a unique planar wideband circularly polarized MIMO antenna for 4G and Sub-6 5G band (1.35-2.75 GHz), with pattern diversity over the entire axial-ratio bandwidth. The design consists of two tri-branch planar inverted-F antenna (PIFA) antennas with a ground T-stub between the antennas, which is used to realize circular polarization and high isolation. The third antenna is an integrated Sub-6 5G (4.45-4.7 GHz) and LTE band (786.7-807.7 MHz) antenna, which is folded above the ground and placed vertically around the side. It also provides circular polarization at LTE band. The 3 dB axial ratio bandwidth (ARBW) of the MIMO antenna is 1.08 GHz (1.47-2.55 GHz); impedance matching bandwidth (IMBW) is 1.4 GHz (1.35-2.75 GHz); and its isolation is better than 13.4 dB in the whole band. It is fabricated on an FR-4 substrate and is suitable for mobile handset.

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A Planar Polarization-Reconfigurable Antenna

Cited by 45 publications

References 23 publications

Dual circularly polarized loop antenna using a pair of resonant even‐modes

Dual circularly polarized loop antenna using a pair of resonant even‐modes

Inspirasi Antena Metabahan yang Boleh Dikonfigurasi untuk Komunikasi 5G

Pattern Diversity Mimo 4g and 5g Wideband Circularly Polarized Antenna With Integrated Lte Band for Mobile Handset

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