Min Liu's research while affiliated with Harbin Institute of Technology and other places

Publications (10)

Article
A cylindrical conformal 2 × 2 microstrip circularly polarized antenna sub-array operating at millimeter-wave band is proposed. A square patch with triangular truncated corner is designed to construct circularly polarized element. This element is connected by T mode parallel feed network to form 2 × 2 circularly polarized antenna arrays. Based on pl...
Article
The work presents a design of millimeter-wave conformal microstrip antenna arrays. Based on the HFM and the parallel feed network, two conformal microstrip 4x4 arrays respectively on a cylinder and an elliptic cylinder surface are designed by the isotropic transformation theory (IT). Simulation results show that the conformal arrays work at 35 GHz...
Article
The work presents a design of millimeter-wave conical conformal dual-band microstrip antenna array. At first, the insert middle feed method is used to design the rectangle patch element. Based on this element and parallel feed network, a conformal dual-band microstrip array on a cone surface is designed. Simulation results by the CST are given to s...
Article
The work presents analysis and simulations for apertures of square, rectangle and round shape on the cylinder. For a single slot, the coupling transmission coefficient (CTC) of square and round shape slot are similar to each other and have a frequency-related fluctuating uprising tendency, when long side of a vertical rectangle is a little smaller...
Conference Paper
Design of a millimeter-wave conformal phased microstrip patch antenna 2 times 8 elements array on a cylinder surface is presented. The hemline feed method (HFM) is used to design the patch element. This kind of elements and parallel feed network is used for forming the conformal microstrip array based on the isotropic transformation (IT) theory. Th...
Article
Design of a millimeter-wave conformal low sidelobe microstrip patch antenna 1 times 8 elements array on a cone surface is presented. The hemline feed method (HFM) is used to design the patch element. This kind of elements and parallel feed network is used for forming the conformal low sidelobe microstrip array based on the design principle of Dolph...
Conference Paper
The work presents a design of a cylindrical conformal phased microstrip antenna array. Based on the HFM and the parallel feed network, a conformal microstrip 2 times 8 array on a cylinder surface is designed by the isotropic transformation theory (IT). Simulation results show that the conformal array works at 35GHz and the gain is 19.6dB at the cen...
Conference Paper
In order to broad bandwidth and reduce back radiation, a novel microstrip antenna element operating at millimeter-wave band is proposed which is used H-shaped coupling slot feeding and adds parasitic patch methods. Then, using this antenna element, we design 2x2 microstrip antenna arrays and their feeding network. Comparing with traditional feeding...
Conference Paper
Design of a millimeter-wave conformal low sidelobe microstrip patch antenna 1times8 elements array on a cone surface is presented. The hemline feed method (HFM) is used to design the patch element. This kind of elements and parallel feed network is used for forming the conformal low sidelobe microstrip array based on the design principle of Dolph-C...
Article
Design of a 35 GHz conformal microstrip patch antenna 4 x 4 elements array on a perfectly conducting cone is presented. A new kind of microstrip feed approach, which is hemline feed method (HFM), is used to design the patch element. And this kind of elements is used for forming the conformal microstrip array. The influence of the conical curvature...

Citations

... In addition, the very long distance spanned by space vehicles, such as those travelling to Mars, requires high gain and efficient adaptive conformal antennas to ensure high quality of the communication link. Several conformal antenna array structures have been proposed in the literature , where most of them are fabricated in the form of microstrip patch antennas printed on a conical surface [8][9][10][11][12][13][14] or slotted cylindrical and conical structures [15][16]. For example, in [17], a conical array was designed for radar applications using genetic algorithm to reduce sidelobe levels. ...
... However, it is time consuming and sometimes cannot be used in reality because the distance between elements is too small. Some conformal arrays have been proposed to extend the scanning angle [12, 13], but the application of conformal array is often subject to the conditions of application environments. In [14, 15], the theory of unequally spaced array has been proposed, which has no grating lobes in the visible region when the distance between elements is greater than í µí¼†/2. ...
... This study proposes that given the development of sophisticated Finite Difference Time Domain (FDTD) modelling tools, it is now possible to design a conformal array directly for a set of requirements, based on the surface geometry available. Dependant upon the frequency and geometry of interest the difference between a true 'conformal' array of conformal antenna elements such as presented by Liu et al [3], and Schippers et al [2], and a conformal array of modular 'facets' may become increasingly irrelevant. ...
... In addition, the very long distance spanned by space vehicles, such as those travelling to Mars, requires high gain and efficient adaptive conformal antennas to ensure high quality of the communication link. Several conformal antenna array structures have been proposed in the literature , where most of them are fabricated in the form of microstrip patch antennas printed on a conical surface [8][9][10][11][12][13][14] or slotted cylindrical and conical structures [15][16]. For example, in [17], a conical array was designed for radar applications using genetic algorithm to reduce sidelobe levels. ...
... Therefore, the radiating element can be regarded as the matched load. We can change the phase relationship between elements by adjusting the distance between them in order to realize the arbitrary beam direction and achieve the effect of the main lobe [20]. ...
... So far, however, the CAenabled UAV mmWave network is almost untouched in the literature. Regarding the mmWave CA, there are only a few recent works on the radiation patterns and beam scanning characteristics [20] and the performance evaluation of CAbased beamforming for static mmWave cellular networks [21]. These works validate the potential advantage of CA in the static mmWave networks, which are not applicable to mobile UAV mmWave networks. ...
... For conically conformed antenna, arrays have been used for gain enhancement. A 1X8 horizontal array of rectangular patch antennas was conformed to a cone in Reference [16] which could produce a gain of 16 dBi. A 1X3 vertical array of annular sector patches was reported to give about 9.6 dBi of directivity in. ...
... The proposed dual-polarized microstrip antenna is considerable solution to accommodate PCS, IMT-2000, WLAN and WiMAX service frequency bands altogether. The proposed antenna had the impedance bandwidth of up to 10% larger than that of the reported antenna [4], [5], [6], [7]. Table 1 The most sensitive parameters of the proposed antenna are the length (D f ), the height (h1) of L-strip, and the height of the air-gap (H). ...