Suppression of Cross-Band Scattering in Interleaved Dual-Band Cellular Base-Station Antenna Arrays

Sun, Hai-Han; Jones, Bevan; Guo, Y. Jay; Lee, Yee Hui

doi:10.1109/access.2020.3043578

Cited by 39 publications

(12 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The parasitic effects concurrently act as detuning elements on the mutual input impedance 1 . A technique based on choked antenna arms has been explored to address these challenges in interleaved dual-band base station antenna arrays 2 , but with inherent limitations on the antenna shape and performance.…”

Section: Introductionmentioning

confidence: 99%

Radio-transparent dipole antenna based on a metasurface cloak

et al. 2022

View full text Add to dashboard Cite

Antenna technology is at the basis of ubiquitous wireless communication systems and sensors. Radiation is typically sustained by conduction currents flowing around resonant metallic objects that are optimized to enhance efficiency and bandwidth. However, resonant conductors are prone to large scattering of impinging waves, leading to challenges in crowded antenna environments due to blockage and distortion. Metasurface cloaks have been explored in the quest of addressing this challenge by reducing antenna scattering. However, metasurface-based designs have so far shown limited performance in terms of bandwidth, footprint and overall scattering reduction. Here we introduce a different route towards radio-transparent antennas, in which the cloak itself acts as the radiating element, drastically reducing the overall footprint while enhancing scattering suppression and bandwidth, without sacrificing other relevant radiation metrics compared to conventional antennas. This technique opens opportunities for cloaking technology, with promising features for crowded wireless communication platforms and noninvasive sensing.

show abstract

Section: Introductionmentioning

confidence: 99%

Radio-transparent dipole antenna based on a metasurface cloak

et al. 2022

View full text Add to dashboard Cite

show abstract

“…ETA yields low scattering when it is illuminated by the high-band (HB) wave. It can be devised by loading current choke [7][8][9] or transforming the low-band (LB) radiator into a band-pass frequency selective surface (FSS). 10,11 In stacked arrays, the works in [12][13][14][15] proposed that an isolating surface, typically a band-stop FSS, can effectively isolate the LB and HB radiating environments.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band stacked base station antenna array with high isolation

Chu

2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

A high‐isolation dual‐band base station antenna array is proposed. At first, a 5‐element high‐band (HB) dipole antenna array with inter‐element distance of 0.4 λH0 (the free‐space wavelength at the center frequency of the HB) is decoupled. With the main antenna decoupling surface (ADS), metal baffles and auxiliary ADS, the E‐plane and H‐plane couplings can be reduced to <−23.1 dB (<−11.4 dB without decoupling) and <−22.6 dB (<−14.8 dB without decoupling), respectively. The dual‐layer ADS design successfully resolves the contradiction between decoupling performance and matching. The ground plane of the 5‐element array is then exploited as the low‐band patch radiator, forming the proposed dual‐band antenna array. Measured results show that satisfactory cross‐band isolation (>33.1 dB), in‐band isolation (>22.2 dB) and polarization isolation (>30 dB) are obtained. Stable unidirectional radiation patterns are also acquired.

show abstract

“…As a simple method, chokes are introduced for scattering suppression in References 13,14, which usually makes the bandwidth of the choked antennas narrower. In addition, an improved wideband choked antenna is proposed in Reference 15.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band dual‐polarized shared‐aperture antenna with cross‐band scattering suppression

Lan

Sun

Ren

et al. 2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

A dual‐band dual‐polarized shared‐aperture antenna with suppression of cross‐band scattering for base station application is presented in this article. The proposed antenna consists of a lower‐frequency‐band (LFB) antenna and two 1 × 3 higher‐frequency‐band (HFB) arrays. The LFB antenna is designed with a novel configuration. Some chokes composed of inductive and capacitive elements are introduced for scattering current suppression of the cross‐band, which is the main reason for the deterioration of the radiation pattern of the HFB arrays. The measured results show that the LFB antenna with the operating frequency of 690–960 MHz and the HFB antenna with the operating frequency of 1710–2170 MHz achieve stable radiation characteristics in their respective bandwidth.

show abstract

Suppression of Cross-Band Scattering in Interleaved Dual-Band Cellular Base-Station Antenna Arrays

Cited by 39 publications

References 15 publications

Radio-transparent dipole antenna based on a metasurface cloak

Radio-transparent dipole antenna based on a metasurface cloak

Dual‐band stacked base station antenna array with high isolation

Dual‐band dual‐polarized shared‐aperture antenna with cross‐band scattering suppression

Contact Info

Product

Resources

About