An antenna structure for the transmission or receipt of electromagnetic signals, the structure formed as a self complementary array having a series of high and low impedance patches, with predetermined low impedance patches interconnected to one another by an impedance matching amplifier network so as to provide self complementary properties.

Reconfigurable self complementary array

A mobile receiving device for a terrestrial digital TV is provided to asynchronously extract the maximum point of an autocorrelation function from an IF(Intermediate Frequency) band and secure the optimum receiving performance. A channel estimating and analyzing unit(40) estimates and analyzes a channel by using a V-GBSBEM(Velocity-Geometrically Based Single Bounce Elliptical Model) in which a velocity is added to a GBSBEM. The V-GBSBEM uses information about a moved direction of the arrangement antenna as an input parameter to consider a doppler generated when the arrangement antenna is moved.

Mobile signal reception equipment for terrestrial digital television

Reconfigurable self-complementary antenna array

PURPOSE: An integrated type active antenna is provided to receive various communication services such as AM/FM, TV, GPS, PCS, and satellite broadcasting signals by using a two-dimensional patch array antenna. CONSTITUTION: An integrated type active antenna includes an array antenna(10), a plurality of phase displacement amplification portions(20), a control portion(30), and an N-way power synthesizer(40). The array antenna(10) is used for receiving a satellite signal or a sky wave. The phase displacement amplification portions(20) are connected to the array antenna(10), respectively. The phase displacement amplification portion(20) has one chip or one module including a low noise amplifier(20a) for amplifying low noise and a phase displacement unit(20b). The control portion(30) controls the phase displacement unit(20b). The N-way power synthesizer(40) is used for receiving signals from the phase displacement amplification portions(20) to synthesize the received signals.

Kim Yeong Sik

Papers

Integrated active antenna