41 results about "Planar monopole" patented technology

An ultra wide band planar monopole trapezoidal antenna is provided. The antenna includes a radiation element and a transmission element. Both the radiation element and the transmission element are formed on a printed circuit board. The transmission element is connected to the radiation element. The radiation element is made of electrically conductive material, which includes an upper base and a lower base parallel to the upper base. The upper base and the lower base are connected to form two side portions. The lower base of the radiation element is parallel to the grounded surface of the transmission element, thereby forming a tunable feedgap.

The invention relates to a broadband dielectric resonator antenna based on planar monopole patch excitation, comprising a cylindrical dielectric resonator with a gap, a support foam material, a planar monopole patch, a square metal floor and a feeding SMA connector. The radiation body of the antenna is the cylindrical dielectric resonator with a gap, the top surface is loaded with a metal coating, and the inverted trapezoidal planar monopole patch is adopted for excitation. The dielectric resonator is placed on the metal floor. The foam material of which the dielectric constant is close to 1.0 is used to support the dielectric resonator. The antenna has the advantages of compact and reliable structure, low cost, low processing difficulty and high radiation efficiency, can meet the performance requirement of the working band from 3GHz to 6.5GHz, and is very suitable for a C-band broadband wireless communication system.

The invention provides a dual-band wide beam width millimeter wave microstrip antenna based on a planar monopole antenna. The dual-band wide beam width millimeter wave microstrip antenna comprises a dielectric substrate, a radiation patch, a reflecting floor and a coaxial feeder, the radiation patch and the reflecting floor are respectively arranged on both surfaces of the dielectric substrate, a U-shaped groove is formed in a front face of the radiation patch, the reflecting floor adopts a planar patch in the form of the monopole antenna, and the coaxial feeder penetrates through the dielectric substrate to connect the radiation patch and the reflecting floor. The dual-band wide beam width millimeter wave microstrip antenna provided by the invention effectively improves the communication efficiency of a radar system, reduces the effective radiation area of the antenna, greatly improves the semi-power beam width on a specified direction, effectively improves the anti-interference ability of the antenna in a combat communication system, is small in structure and is convenient to combine with a complete machine.

The invention discloses a T shape surrounding type multi-frequency mobile phone antenna and provides a planar monopole mobile phone antenna which is simple in structure, easy to machine, low in manufacturing cost and capable of meeting the requirements for miniaturization and multiple frequencies and is capable of meeting the requirement for the 2G frequency band, the 3G frequency band and the 4G frequency band. The T shape surrounding type multi-frequency mobile phone antenna comprises a dielectric layer, grounded metal sheets and a radiation metal sheet, wherein the radiation metal sheet is directly printed on the upper surface of the dielectric layer, the T-shaped radiation metal sheet achieves direct feed, and the metal sheets surrounding the T-shaped radiation metal sheet are directly grounded. According to the T shape surrounding type multi-frequency mobile phone antenna, multiple frequency bands can be covered through the coupling between the T-shaped radiation metal sheet which can achieve direct feed and the grounded metal sheets which surround the radiation metal sheets, large bandwidth is achieved, miniaturization and multiple frequencies of the mobile phone antenna are achieved, the structure is extremely simple, and a lumped element and special substrate materials do not need to be loaded. The T shape surrounding type multi-frequency mobile phone antenna is suitable for 2G/3G/4G ultra-thin smart phones.

The invention relates to an adjustable 4G MIMO mobile phone antenna based on liquid metal. The adjustable 4G MIMO mobile phone antenna comprises a planar monopole antenna, a planar inverted F antenna,a liquid metal channel, liquid metal, a metal ground body and two L-shaped metal ground branches, wherein the monopole antenna is a main antenna, and can operate in eight frequency bands such as LTE700, GSM850, GSM900, DCS, PCS, UMTS, LTE2300 and LTE2500. The planar inverted F antenna is an auxiliary antenna, and can cover five high frequency bands, higher than 1 GHz, such as DCS, PCS, UMTS, LET2300 and LTE2500, and inside the LTE700, GSM850 AND GSM900 frequency bands lower than 1 GHz, the resonant frequency can be changed by adjusting the length of the liquid metal. The isolation of the twoantennas inside the working frequency band is higher than 10 dB, the efficiency of the antennas can reach more than 60% in the low frequency bands and can reach more than 80% in the high frequency bands, and the adjusting length of the liquid metal is within 20 mm, so that fundamental requirements of the mobile phone antenna can be met. The antenna has the advantages of wide covering frequency bands, simple structure, easy manufacturing, high antenna efficiency, good isolation and the like.

The invention discloses a mini-type multi-band frequency mobile phone antenna and provides a planar monopole mobile phone antenna which is small in size, easy to manufacture, low in manufacturing cost and capable of meeting the multi-frequency requirement and meeting the requirement of the frequency bands of GSM850/900/1800/1900, UMTS and LTE2300/2500 at the same time. The antenna comprises a dielectric plate, an earth plate and a radiation metal sheet set, wherein the radiation metal sheet set is directly printed on the upper surface of the dielectric plate; an inverted-L-shaped radiation metal sheet directly carries out feed, one directly grounded bent radiation metal sheet is divided into two branches after being folded by several times, the multiple frequency bands can be covered with coupling between the directly fed inverted-L-shaped radiation metal sheet and the grounded radiation metal sheet set, the large bandwidth is achieved, the miniaturization and multiple frequencies of existing mobile phone antennas are achieved, and lumped elements and special substrate materials do not need to be loaded. The mini-type multi-band frequency mobile phone antenna is applicable to 2G/3G/4G mobile phones.

The present invention discloses a multi-input multi-output antenna system comprising a first radiation unit, a second radiation unit, a radiation floor, a dielectric plate and a parasitic element. The first radiation unit, the second radiation unit and the parasitic element are printed on an upper surface of the dielectric plate, and the radiation floor is printed on a lower surface of the dielectric plate. The first radiation unit and the second radiation unit are planar monopole antennas, and the parasitic element is positioned between the first radiation unit and the second radiation unit. The system in accordance with the present invention can implement miniaturization of the antennas, and ensure two ports of an antenna have high isolation while maintaining good radiation performance.

Embodiments of the invention provide an ultra-wide-band planar monopole antenna array, a communication device and terminal equipment. The ultra-wide-band planar monopole antenna array comprises a dielectric substrate, a first grounding plate, a second grounding plate, a neutral line, a radiation patch and a microstrip feeder line of a first planar monopole antenna, and a radiation patch and a microstrip feeder line of a second planar monopole antenna, wherein the first grounding plate and the second grounding plate are symmetrically printed on the lower surface of the dielectric substrate along a center line of the dielectric substrate respectively; the radiation patch and the microstrip feeder line of the first planar monopole antenna, and the radiation patch and the microstrip feeder line of the second planar monopole antenna are symmetrically printed on the upper surface of the dielectric substrate along the center line of the dielectric substrate respectively; and the two ends of the neutral line are connected with the radiation patch of the first planar monopole antenna and the radiation patch of the second planar monopole antenna respectively. By loading the neutral line on the antenna array, the antenna array can be decoupled, thereby greatly strengthening the isolation degree between antenna array elements; and in addition, the ultra-wide-band planar monopole antenna array is simple and convenient to implement.

The invention discloses a multi-band miniaturized planar monopole antenna which comprises a medium substrate, a first antenna radiation unit, a second antenna radiation unit, a micro-strip feeding line and a ground plate, wherein the first antenna radiation unit, the second antenna radiation unit, the micro-strip feeding line and the ground plate are made of copper material, and copper is applied to the surface of the medium substrate by using a laser technology or a corrosion technology. According to the multi-band miniaturized planar monopole antenna, only two radiation units are used, three bands are achieved, and the antenna is simple in structure, has no via hole and is easy to process and mold and low in cost. Miniaturization of the antenna is realized by using a circuitous flow method of the circuitous radiation units. The antenna of the invention adopts a feeding method combining direct feeding and coupled feeding, thus effectively improving impedance matching of the antenna. The antenna of the invention is suitable for a plurality of wireless communication frequency bands.

An apparatus including an antenna for wireless communications is disclosed. The antenna includes a first radiating element and a second radiating element electromagnetically coupled to and electrically isolated from the first radiating element. The first radiating element includes at least one characteristic feature that is substantially the same as at least one characteristic feature of the second radiating element. The first radiating element may be configured as a planar monopole having various shapes, such as elliptical, circular, triangular, square, rectangular, diamond, or polygon. The planar monopole may further be electrically coupled to a flat or curved metallic load. The first radiating element may also be configured as a cone. The second radiating element may be configured as a flat or curved metal structure.

The embodiments of the invention provide an ultra-wide plane monopole antenna array, a communication device and a terminal device. The antenna array includes a medium substrate, a neutralizing wire, and a first earth plate and a second earth plate which are symmetrically printed on a lower surface of the medium substrate along a first central line of the medium substrate, and a radiation patch and a microstrip feeder of a first plane monopole antenna and a radiation patch and a microstrip feeder of a second plane monopole antenna which are symmetrically printed on an upper surface of the medium substrate along the first central line of the medium substrate; specified edges of the first earth plate and the second earth plate have symmetrical recessed parts, a specified edge being an edge approaching the first central line of the medium substrate, the symmetrical recessed parts being symmetrical around a second central line of the medium substrate, and the second central line being perpendicular to the first central line; two ends of the neutralizing wire are respectively connected to the radiation patch of the first plane monopole antenna and the radiation patch of the second plane monopole antenna. The loading of the neutralizing wire on the antenna array greatly intensifies isolation level among antenna array elements.

The invention relates to an internal monopole antenna of especially a flat a radio device, which monopole antenna has an arrangement for improving its characteristics. The antenna comprises a planar monopole radiator (310) and an auxiliary element (320), which is located at the point of the planar element as viewed in the direction of its normal. The auxiliary element can be a mere conductor strip or a ceramic plate partly coated with a conductor. The conductor of the auxiliary element is connected to the ground at a point (SP), which is relatively close to the feed point (FP) of the planar element. The planar element (310) can be shaped to form two operating bands for the antenna. The auxiliary element can be used to increase the bandwidth of the internal monopole antenna and/or to improve the omnidirectional radiation of the antenna.

The invention discloses a planar monopole and half-slot structure dual polarized antenna. A monopole radiation oscillator and a metal floor are respectively arranged on an upper surface and a lower surface of a dielectric substrate so as to jointly form a planar monopole antenna unit; a half slot is formed on the metal floor to form a half-slot antenna unit; a feed structure is composed of a metalconnection part and two feed ports penetrating in the dielectric substrate and being fixed therein, and the feed structure is used for performing electrical connection for the monopole radiation oscillator and the metal floor. Consequently, based on the characteristics of polarized orthogonality of the two antenna units, by different feed modes, two different line polarization waves on the same frequency are realized. Additionally, the planar monopole antenna unit and the half-slot antenna unit both have the characteristics of low profile, light weight and being easy to process, thus, the dual polarized antenna formed by the two units also has the advantages of being simple in structure, small in size and easy to process.

The invention relates to a mobile terminal broadband MIMO dual-antenna assembly. The mobile terminal broadband MIMO dual-antenna assembly includes a dielectric plate, a metal ground portion, a planarmonopole portion and a signal feeding portion, wherein the metal ground portion is located at one surface of the dielectric plate, and the planar monopole portion and the signal feeding portion are located at the other side of the dielectric plate; the metal ground portion includes a main ground board, a first parasitic ground branch and a second parasitic ground branch; and the planar monopole portion includes an antenna unit A and an antenna unit B, wherein the antenna unit A and the antenna unit B are arranged at two ends of the long edge of the main ground board, and each unit includes twobranches of unequal lengths. The antenna assembly is of a planar structure and can cover a plurality of mobile communication frequency bands in a small size; and the antenna assembly has the advantages of low profile, wide frequency band, high isolation, and small size, and is suitable for various small mobile terminals represented by mobile phones.

The invention discloses a coplanar waveguide feed directional diagram reconfigurable planar monopole antenna, which comprises a metal coating, two micromechanical system (MEMS) switches and a medium substrate. The metal coating comprises a radiation patch, a coplanar waveguide feeder line and a coplanar waveguide floor. The coplanar waveguide floor comprises a first coplanar waveguide floor, a second coplanar waveguide floor, a third coplanar waveguide floor and a fourth coplanar waveguide floor. The coplanar waveguide feed directional diagram reconfigurable planar monopole antenna is simple in structure, the state of the coplanar waveguide floor can be effectively changed only by controlling the on-off of a first MEMS switch and a second MEMS switch, therefore, the reconfiguration purpose of an antenna radiation directional diagram can be realized on the premise of maintaining the working frequency. The antenna is used for transmitting and receiving electromagnetic waves and has the characteristics of small size, light weight, convenience in machining and wide working band.

The invention discloses an earth plate slot radiation n-type parasitic structure multi-frequency planar monopole antenna, comprising: a square dielectric substrate; a monopole rectangular radiation arm disposed on the upper surface of the square dielectric substrate; an n-type metal parasitic structure disposed on the upper surface of the square dielectric substrate; and a metal earth plate disposed on the lower surface of the square dielectric substrate. The monopole rectangular radiation arm is a rectangular metal patch. The axis of the monopole rectangular radiation arm in parallel to a long arm passes through the center of the upper surface of the square dielectric substrate. A short side of the monopole rectangular radiation arm coincides with a first side of the upper surface of thesquare dielectric substrate, and the centers of two edges coincide with each other to serve as a feed port of the earth plate slot radiation n-type parasitic structure multi-frequency planar monopoleantenna. Two groups of rectangular slot structures are etched symmetrically on the metal earth plate. The earth plate slot radiation n-type parasitic structure multi-frequency planar monopole antennasolves the technical problems that the antenna of an existing wireless mobile communication system has a single operating frequency and thus leads to an increase in system complexity and a decrease inreliability.

The invention discloses a bipolar antenna with a planar monopole and a slot structure. A monopole radiation oscillator and a metal floor are set on an upper surface and a lower surface of a dielectricsubstrate, thereby jointly forming a planar monopole antenna unit. A slot is set on the metal floor to form a slot antenna unit. A feed structure unit is composed of a metal connection part and two feed ports which penetrate the dielectric substrate. The feed structure unit is used for carrying out electrical connection on the monopole radiation oscillator and the metal floor. Through utilizationof polarization orthogonal characteristics of the two antenna units, two different linearly polarized waves on the same frequency are achieved in different feed modes. The planar monopole antenna unit and the slot antenna unit are characterized by low profiles, light weight and easy processing, so the bipolar antenna formed by the planar monopole antenna unit and the slot antenna unit also has the advantages of a simple structure, a small size, and easy processing and production.