A Compact Dual-Polarized Filtering Antenna With Steep Cut-Off for Base-Station Applications

Liu, Xuekang; Gao, Steven; Hu, Wei; Wen, Lehu; Luo, Qi; Sanz-Izquierdo, Benito; Chen, Xiaodong; Qian, Long; Sumantyo, Josaphat Tetuko Sri; Yang, Xue‐Xia

doi:10.1109/tap.2022.3161280

Cited by 22 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it doesn't have the ability of rejecting the unwanted signals. The designs in [21]- [25] obtain efficient attenuation of unwanted signals within targeted frequency range. However, none of them can cover the target frequency bands (1.42-2.69 GHz).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Wideband Dual-Polarized Filtering Antenna for Base Station Applications

Liu,

Sanz-Izquierdo,

Gao

et al. 2024

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

A compact wideband dual-polarized filtering antenna based on tightly coupled cross dipoles is presented in this letter. The enhancement of impedance bandwidth is realized by introducing four impedance equalizers to equalize the input resistances of the two inherent resonant modes of tightly coupled cross dipole antenna. The enhancement of the selectivity is realized by introducing two radiation nulls in 5G sub-6 GHz n77 and n79 bands. The radiation null in n77 band is obtained by introducing the cross strips in the center of the antenna. The radiation null in the n79 band is achieved by the introduction of open-end branches. The manipulation of their key parameters allows for independent control over both radiation nulls. The validity of the antenna's design principle was confirmed by carrying out fabrication and measurements. The results obtained showcase the antenna's broad fractional bandwidth of 63.4% and exceptional port isolation of 31 dB. High out-of-band rejection levels in n77 and n79 bands are also obtained. In addition, since the whole radiator of the presented antenna is coplanar, it offers the advantage of a simple structure and convenient manufacturing, making it highly suitable for the use in base stations operating across multiple bands.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Some filtering antennas were presented in [15]- [25] to reject the unwanted radiation. By combining the high-pass property of the ME dipole and the low-pass feeding network, a wideband dual-polarized antenna with bandpass response was presented in [18].…”

Section: Introductionmentioning

confidence: 99%

Wideband Dual-Polarized Filtering Antenna for Base Station Applications

Liu,

Sanz-Izquierdo,

Gao

et al. 2024

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

show abstract

“…The base station parameters are shown in Table 3 based on the 3GPP standards [33,34]. There are three types of base stations, namely RMa, UMa, and UMi stations.…”

Section: Simulation Parametersmentioning

confidence: 99%

Deployment Protection for Interference of 5G Base Stations with Aeronautical Radio Altimeters

Duan,

Ma,

Bai

et al. 2024

Sensors

View full text Add to dashboard Cite

In this manuscript, we present a novel deployment protection method aimed at safeguarding aeronautical radio altimeters (RAs) from interference caused by fifth-generation (5G) telecommunication base stations (BSs). Our methodology involves an integrated interference model for defining prohibited zones and utilizes power control and angle shutoff methods to mitigate interference. First, to ensure reliable protection, we define both horizontal and vertical prohibited zones and investigate their variations to immunize RA against 5G interference. Second, we validate the effectiveness of the model in various operational scenarios, analyzing the influence of factors such as base station types, antenna parameters, flight altitude, and aircraft attitudes to cover a wide range of real-world scenarios. Third, to mitigate interference, we propose and analyze the power control and angle shutoff methods through simulation for the RMa prohibited zone. Our results demonstrate the efficacy of the deployment protection method in safeguarding RAs from 5G interference, providing guidance for interference protection during civil aviation operations and base station deployment near airports.

show abstract

“…To enhance the port isolations, many new methods are investigated [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17]. By introducing decoupling branches [1], [2] and decoupling surface [2], the mutual coupling in [1] and [2] is effectively reduced.…”

Section: Introductionmentioning

confidence: 99%

“…Using filtering antennas [6], [7], [8], [9], [10] is also a popular method to obtain high isolations in the design of dual-multiband array antenna. By properly designing the structure of the radiator [11] or integrating a filter into the transmission line (TL) [12], antenna elements with a high outof-band rejection level can be obtained. The LB element has nearly no radiation in the operating band of the HB element and vice versa.…”

Section: Introductionmentioning

confidence: 99%

A Mutual-Coupling-Suppressed Dual-Band Dual-Polarized Base Station Antenna Using Multiple Folded-Dipole Antenna

Liu

Gao

Sanz-Izquierdo

et al. 2022

IEEE Trans. Antennas Propagat.

Self Cite

View full text Add to dashboard Cite

An interleaved shared-aperture dual-band dualpolarized base station array antenna is proposed in this article. The lower-band (LB) element is realized by using a multiple folded-dipole antenna (MFDA) and four parasitic loops. To interpret the working principle of the MFDA, a double folded-dipole antenna (DFDA) is firstly analyzed by using the transmission line (TL) model. Then, by combining two bended DFDAs and introducing four parasitic loops, a low cross-band scattering LB element with a high out-of-band rejection level of 16 dB is obtained to cover 2.3-2.7 GHz. The higher-band (HB) element with a wide impedance bandwidth of 42.5% (3.0-4.6 GHz), a high roll-off rate (RoR) of 249.2 dB/GHz, and a high out-of-band rejection level of 17 dB is obtained by introducing a meander line loop (MLL), a rectangular loop (RL), and V-shaped strips (VSS) near the dipole arms. By combining the proposed lowscattering low-pass LB element and the high-RoR high-pass HB element, a novel interleaved shared-aperture dual-band dualpolarized array antenna with a small frequency ratio of 1.46 and a high cross-band isolation level of 25 dB is realized. Due to the low-scattering characteristic and filtering response of the LB element, the radiation patterns of the wideband HB sub-arrays are almost unaffected.

show abstract

A Compact Dual-Polarized Filtering Antenna With Steep Cut-Off for Base-Station Applications

Cited by 22 publications

References 20 publications

Wideband Dual-Polarized Filtering Antenna for Base Station Applications

Wideband Dual-Polarized Filtering Antenna for Base Station Applications

Deployment Protection for Interference of 5G Base Stations with Aeronautical Radio Altimeters

A Mutual-Coupling-Suppressed Dual-Band Dual-Polarized Base Station Antenna Using Multiple Folded-Dipole Antenna

Contact Info

Product

Resources

About