**5. Conclusions**

240 VLSI Design

Channel 13 (HD) Channel 1.1 Reception with the commercial aerial antenna

Channel 4 Channel 8

Channel 10 Channel 21 (Repetition of channel 10)

Channel 39 Channel 45

The simulations of the patch antenna array show its dual frequency performance. In spite of the inherent narrow broadband of the microstrip antennas, the practical reception, realized in different geographical sites of Morelos and in Morelia, Michoacan, has also confirmed the feasibility of its use for household reception of openly TV frequency ranges.

The difference in the TV reception can be attributed to the proximity of the repeaters antennas, and to the elevation conditions. The vegetation is also relevant.

The experimental and practical tests show an acceptable reception of channels in both VHF sub-ranges of frequencies.

In TVs that accounts with graphical signal meter, it was possible to observe that with the antenna on the house's roof, the current signal meter obtained its maximal level, for the case of HD channels, which is certainly a very good practical result, and it constitutes a base to suggest its use as outdoor antenna.

In the three tests realized using digital TVs on different places, it must be mentioned that unfortunately the available TVs have different attributes, but in all cases the better reception was obtained with our prototype. The comparison with aerial antennas was only possible where they were available.

The prototype sizes make it a competitive option compared with some commercial aerial antennas available in the market. Additionally, for the case of digital TVs, it does not require of an amplifier or a rotor, once it was properly directed. For the case of analogical TVs the reception improvement is considerable compared with the options shown here.

As future work, it is planned to design an appropriate radome for protection of the prototype to the weather.

The implementation of geometry modifications is also been considered in order to increment the broadband of the antenna array. Its sizes can be also reduced using another material, but its costs will be incremented.
