首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
六星极电视天线
摘要
六星极电视天线是一种有源、多方向、全频道电视接收天线,由竖杆、U段接收装置、V段接收装置、放大器、电源组成,其特征是在U段接收装置中,共设三个接收单元,每单元相隔120°,采用高增益的双环振子,和抛物面反射器,在弱信号地区用时还设有5单元引向器,在Ⅵ段和Ⅷ段采用5单元复合天线,从而减少了体积增强了抗风能力,适合于家庭使用。
申请公布号
CN2249970Y
申请公布日期
1997.03.19
申请号
CN96206956.6
申请日期
1996.03.30
申请人
项青松
发明人
项青松
分类号
H01Q21/30;H01Q23/00
主分类号
H01Q21/30
代理机构
代理人
主权项
1、一种六星极电视天线由竖杆、U段接收装置,V段接收装置,放大器、电源组成,其特征是U段接收装置,装在竖干上部,V段接收装置装在竖杆中部,放大器装在竖杆下部。
地址
324400浙江省龙游县新三路001电子有限公司
您可能感兴趣的专利
LOW TORQUE HINGED HEAT TRANSFER JOINT
PROCESS FOR THE REDUCTION OF THE NH3-METHANOL-EMISSION OF AN AMMONIA SYNTHESIS PLANT
A SPREADSHEET SYSTEM
NONLINEAR AROMATIC POLYAMIDE FIBER OR FIBER ASSEMBLY AND METHOD OF PREPARATION.
METHOD AND APPARATUS FOR DIGITISING A SIGNAL WITH A HIGH RESOLUTION
ALBUMIN PREPARATION AND METHOD OF PRODUCING THE SAME.
VACUUM INDUCTION FURNACE.
STRUCTURE OF MOTOR HOUSING HAVING INTEGRALLY MOLDED ELECTRIC CONNECTOR.
Tumble drier.
A sleeve type carton and feeding method therefor.
Checkout counter with keypad.
Locking device with a pawl for swingable sliding doors without handle.
Controlling a multiphase brushless motor without position sensors for the rotor, using a system of digital filtering.
Educational folder.
Device for the automatic shut-off of a radiant burner in case of flashback.
Reservoir cap, in particular fuel tank cap for motor vehicle.
Elastic supporting element with stepwise variable rigidity.
Zero-current switching forward power conversion.
Tungsten halogen lamp.
Frequency synthesiser.