35results about How to "Increase antenna bandwidth" patented technology

Disclosed is a small-sized multi-frequency airborne satellite navigation antenna. The small-sized multi-frequency airborne satellite navigation antenna comprises a feed pin, a pressing block, an antenna cover, a GPS antenna printed board, a first BD antenna printed board, a second BD antenna printed board, an isolation board, a radio frequency amplifying circuit board, an antenna mounting framework, a connector assembly and a sleeve, wherein the feed pin runs through the GPS antenna printed board, the first BD antenna printed board, the second BD antenna printed board, the isolation board and the radio frequency amplifying circuit board and welded at the two ends; the sleeve selects CP-50 and is welded on the radio frequency amplifying circuit board; the welded assembly and the antenna cover are fixed on the antenna mounting framework by the pressing block and five screws; and an inner core of the TNC connector assembly is aligned and inserted into the sleeve CP-50 while the exterior of the connector assembly is tightly screwed to the antenna mounting framework through screw threads. The small-sized multi-frequency airborne satellite navigation antenna can realize multi-frequency operation and can cover satellite navigation frequency bands of GPSL1, L2, BDB1 and B3; and the small-sized multi-frequency airborne satellite navigation antenna is relatively wide in wave beam coverage range, high in gain, small in size, light in weight, free of debugging, and high in phase center stability, and can be widely applied to various kinds of positioning and measuring systems.

The micro-electromechanical stacked millimeter-wave antenna provided by the present invention includes an upper dielectric substrate, a middle dielectric substrate and a lower dielectric substrate, the upper surface of the upper dielectric substrate is deposited with metal and etched to form a first metal radiation patch , the upper surface of the middle dielectric substrate is deposited with metal and etched to form a second metal radiation patch, the upper surface of the lower dielectric substrate is deposited with metal and etched to form a ground plane with an aperture coupling gap, the lower layer Metal is deposited on the lower surface of the dielectric substrate and etched to form a FGCPW-MS feeder or MS feeder, and the upper dielectric substrate, middle dielectric substrate and lower dielectric substrate are integrated through a MEMS bonding process. The antenna has a small geometry, light weight and is easy to further integrate.

The invention discloses a mini broadband gap type mobile phone antenna, and solves the problems that a present gap type mobile phone antenna is narrow in the low-frequency bandwidth, complex in structure and large in size. The antenna is printed on a mobile phone circuit board, and comprises three layers, namely a dielectric plate, the ground at the bottom surface of the dielectric plate and a feeder line at the top surface of the dielectric plate. Two rectangular gaps, namely a first gap and a second gap, are formed in the ground, openings of the two gaps are positioned in two opposite sides respectively, the first gaps serves as a main gap, and the second gap is used to excite more current to distribute near the first gap. The feeder line is composed of a rectangular microstrip line and a metal strip line of a bent shape, the metal strip line is connected with the rectangular microstrip line, and the projection of the metal strip line on the ground is placed in the first gap and is bent around the boundary of the first gap. The antenna can excite two resonance modes in the low frequency band, realizes broadband matching, and the -6dB bandwidth is 0.82-1.08GHz (260MHz). The antenna also has the advantages of being small in size, saving space of a mobile phone and being easy to realize, and is wide in engineering application prospects.

The invention provides an antenna system, which comprises a metal back shell, a system ground unit, an upper antenna module and a lower antenna module, wherein the upper antenna module comprises a main low-frequency antenna, a three-in-one small antenna, a dynamic adjustable switch and a first ground point; each of the main low-frequency antenna and the three-in-one small antenna comprises a low-frequency feed point and a three-in-one small antenna feed point; the lower antenna module comprises a first medium-high frequency antenna, a second medium-high frequency antenna and a second ground point; and each of the first medium-high frequency antenna and the second medium-high frequency antenna comprises a first medium-high frequency feed point and a second medium-high frequency feed point. The invention further provides electronic equipment. The electronic equipment comprises the antenna system. Compared with a related technology, the antenna system provided by the invention has the advantage that the technical problem that the antenna performance is affected by holding in a hand is solved.

The invention relates to a broadband dual-polarized antenna unit which is arranged on a metal reflective board, and comprises two pairs of polarized dipole radiation units orthogonally arranged, each dipole radiation unit is arranged on the metal reflective board by a balun, and the positions where the dipole radiation units are connected with the balun are in the same one reference plane; each dipole radiation unit comprises two unit arms symmetrically fixedly arranged on the balun, one ends of the unit arms are fixedly connected with the balun, and the other ends of the unit arms are provided with board like pieces perpendicular to the reference plane; and projections of the unit arms on the reference plane enclose a centrosymmetric polygonal or circle. The broadband dual-polarized antenna unit is simple in structure, easy to manufacture, and suitable for batch production, has the advantages of high performance and broadband, and is especially applicable to mobile communication systems of GSM (Global System For Mobile Communication) 800, GSM 900, CDMA (Code Division Multiple Access) 800, LTE (Long Term Evolution) 700 and the like with 600-1000MHz.

The present invention provides a coupling structure for a wireless communication device, the wireless communication device includes a first grounding unit, a second grounding unit and an antenna, the coupling structure is arranged between the first grounding unit and the second grounding unit, The coupling structure includes a first coupling part, a second coupling part and a third coupling part, the first coupling part, the second coupling part and the third coupling part form a filter, and the antenna receives and / or transmits the first frequency band and the first frequency band For wireless signals of two frequency bands, the filter blocks the signals of the first frequency band between the first grounding unit and the second grounding unit, and allows the signals of the second frequency band to pass. The invention also provides a wireless communication device with the coupling structure.

The invention is a novel solution to circumvent the fundamental gain bandwidth limitations of an antenna of a given size by using a traveling-wave (TW) antenna and strongly coupling it with the mounting platform to enlarge the effective size of the antenna. A preferred form of this invention comprises a conducting ground surface generally curvilinear and conformal to said platform, a broadband TW surface radiator positioned above and spaced apart from said ground surface, an impedance matching structure between the surface radiator and the conducting ground surface, and a reactive impedance matching network positioned on the periphery of said surface radiator.