Ka-band Ltcc Antenna Receiving Components

LTCC (Low-Temperature Co-fired Ceramic) is an effective solution to reduce the weight and volume of system, and improve the performance of system. The paper take some research about Millimeter-wave LTCC antenna and LTCC band-pass filter, furthermore, design a front-end module in Ka-Band.Firstly, the paper discussed the tendency of miniaturization about millimeter circuit module, the characteristic of millimeter wave, introduced the developments of LTCC antenna module. Then, craftwork, merit and defect of LTCC were analysis also.This paper had made some research in the field of Aperture Coupled Fed Patch Antenna and Substrate integrated waveguides slot antenna. Beginning with the unit's design, some improvements on the traditional Coupled Fed slot Antenna was achieved, which doubled the bandwidth of impedance and raised the Gain. Based on the Aperture Coupled Fed Patch Antenna, a 8×8 equally fed array designed. After that, a 4×1 resonance array as a unit of the Substrate integrated waveguides slot antenna was designed and also 4×2 equally fed array were simulated. The gain turned to be higher. My task has implemented these two types of antennas. As a result, the testing of E and H radiation pattern were good matched with the value of simulating, the backside radiation also be preferable. However, because of the instability of craftwork, the working frequency had a little excursion. Afterwards, based the traditional parallel coupling band-pass filter, The modification of the Millimeter wave LTCC band-pass filter realized two transmission zeros.Eventually, the design and test was implemented for the whole antenna module systems, including antenna, LO circuit, receiver circuit. This task accumulated some good experience for the following research about LTCC millimeter circuit.