A 27 GHz, simple 2-bit 1×8 phased array

Abstract

This study demonstrates a simple 2-bit phased array operating at 27 ​GHz that supports one-dimensional beam scanning with left-handed circular polarization (LHCP). The antenna is constructed using a compact four-layer printed circuit board (PCB) structure, consisting of a 90° phase shifter layer with microstrip structures, a ground (GND) layer, a direct current (DC) control layer, and a circularly polarized annular radiation patch layer with 1-bit phase shifting. Based on the proposed unit structure, a 1×8 array with half-wavelength inter-element spacing was designed and validated. Experimental results show that the array achieves a peak gain of 10.23 dBi and is capable of beam scanning within ±50°.

Keywords

27 GHz / 2-Bit / P-i-n diodes / Phased array / Reconfigurable antennas

Funding

This work was supported in part by the National Natural Science Foundation of China under Grant 62171103; in part by the National Natural Science Foundation of China “111”Project under Grant BP0719011.

Declaration of competing interest

The authors declare no conflicts of interest.

References

[1] M. De Kok, C.J.C. Vertegaal, A.B. Smolders, U. Johannsen, A 34- to 36-GHz active transmitarray for Ka-band tracking radar using 5G Tx/Rx beamforming ICs: design and 64-element demonstrator, IEEE Trans. Antenn. Propag. 71 (4) (Apr. 2023) 3260-3272.

[2] K. Kibaroglu, M. Sayginer, G.M. Rebeiz, A low-cost scalable 32-element 28-GHz phased array transceiver for 5G communication links based on a 2×2 beamformer flip-chip unit cell, IEEE J. Solid State Circ. 53 (5) (May 2018) 1260-1274.

[3] S.-Y. Liu, J. Fang, Q.-C. Zhu, Y.-J. Wang, X.-L. Zhang, A LTCC antenna array in Ka- band for beam scanning applications, in: Proc. of 13th Intl. Symp. on Antennas, Propagation and EM Theory (ISAPE), Zhuhai, China, (2021), pp. 1-3.

[4] S. Das, S.K. Sharma, S.W. Waldstein, et al., A flat-panel 8×8 wideband K-/Ka-band dual circularly polarized phased array antenna for cubeSat communications, IEEE Trans. Antenn. Propag. 71 (5) (May 2023) 4153-4166.

[5] A.H. Naqvi, S. Lim, Review of recent phased arrays for millimeter-wave wireless communication, Sensors-Basel 18 (10) (Sept. 2018) 3194.

[6] J.S. Herd, M.D. Conway, The evolution to modern phased array architectures, P. IEEE 104 (3) (Mar. 2016) 519-529.

[7] J.-D. Hu, Y. Li, Z.-J. Zhang, A novel reconfigurable miniaturized phase shifter for 2-D beam steering 2-bit array applications, IEEE Microw. Wirel. Co 31 (4) (Apr. 2021) 381-384.

[8] P.-Q. Liu, Y. Li, Z.-J. Zhang, Circularly polarized 2 bit reconfigurable beam-steering antenna array, IEEE Trans. Antenn. Propag. 68 (3) (Mar. 2020) 2416-2421.

[9] L. Yin, P. Yang, T. Dong, J. Hu, Z.-P. Nie, Low-cost, series-parallel-fed 2-bit phased array antenna in Ku-band, IEEE Antenn. Wirel. Pr. 22 (5) (May 2023) 1084-1088.

[10] M.N. Uddin, M.N.A. Tarek, M.K. Islam, E.A. Alwan, A reconfigurable beamsteering antenna array at 28 ghz using a corporate-fed 3-bit phase shifter, IEEE Open J. Antenn 4 (Jan. 2023) 126-140. P.

[11] K.T. Trinh, J.-W. Feng, N.C. Karmakar, 18.7 GHz 4-bit PIN diode reflection type phase shifter for radiometer phasedarray antenna, in: Proc. of the 2nd Intl. Conf. on Robotics, Electrical and Signal Processing Techniques (ICREST), Dhaka, Bangladesh, (2021), pp. 504-509.

[12] Z.-X. Wang, H.-Q. Yang, R.-W. Shao, et al., A planar 4-bit reconfigurable antenna array based on the design philosophy of information metasurfaces, Eng. Plast. 17 (Oct. 2022) 64-74.

[13] S. Choubey, D. Shah, V. Kikan, M. Sharma, R. Gill, A. Kumar, A rectangular dual-band (30/60 GHz) patch antenna withrectangular slots and parasitic structure for Ka-band and V-band applications, in: Proc. of the 6th Intl. Conf. on, Contemporary Computing and Informatics (IC3I), Gautam Buddha Nagar, India, (2023), pp. 2314-2319.

[14] Y.-L. Dong, R. Xu, Y.-H. Yang, S.-G. Zhou, Compact shared-aperture dual-band dual-circularly-polarized waveguide antenna array operating at K/Ka-band, IEEE Trans. Antenn. Propag. 71 (1) (Jan. 2023) 443-449.

[15] C.H. Lee, J.H. Lee, Wide angle scanning circular polarized meta-structured antenna array, IEICE T. Commun. E101.B (9) (Mar. 2018) 2017-2023.